240 Area CodeGermantown, MD
Area code 240 covers Germantown and nearby communities in Maryland, in the Eastern Time (ET) zone, home to about 2,956,782 people across 314 cities. It was added in 1997 as an overlay of 301, so the same region uses several codes and every local call needs all ten digits.
Overview
- Major City
- Germantown
- State
- Maryland (MD)
- Timezone
- Eastern Time (ET)
- Current Time
- –:––
- Overlay
- Yes – shares area with 227, 301
Overview of the 240 Area Code
What is the 240 area code?
The 240 area code serves Germantown, Maryland, alongside other established area codes. When you see a 240 number, it indicates a local number within this geographic area.
Why was area code 240 created?
Area code 240 went into service on June 1, 1997, as an overlay of 301. An overlay adds a second code to the same territory instead of splitting it: existing 301 numbers kept their digits, new lines began receiving 240 numbers, and local calls in the region require all ten digits. The same territory also carries 227.
Geographic Coverage of the 240 Area Code
The 240 area code serves Germantown and surrounding areas in Maryland. It operates within the Eastern Time (ET) time zone. It complements the coverage of area codes 227 and 301. This area code covers several key cities, including:
- Columbia
- Frederick
- Germantown
- Silver Spring
- Gaithersburg
- Rockville
Got a call from a 240 number? It came from Germantown, MD. Since 240 overlays with 227 and 301, every local call in the region needs all ten digits to land on the right line. Of the listed cities' population, Germantown accounts for about 4.1%; the rest is split across 313 smaller cities.
Germantown Area Codes Overview
Germantown is served by multiple area codes, reflecting its telecommunications needs. The 240 area code operates alongside 227, 301. Here are the area codes serving this region:
The introduction of the 240 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 240 cover?
| City | State | Population | Population in 240 | % of listed-city population | % of City |
|---|---|---|---|---|---|
| Columbia | MD | 99,615 | 11,397 | 4.1% | 11.4% |
| Frederick | MD | 89,537 | 89,537 | 3.7% | 100.0% |
| Germantown | MD | 86,395 | 86,395 | 3.5% | 100.0% |
| Silver Spring | MD | 71,452 | 71,452 | 2.9% | 100.0% |
| Gaithersburg | MD | 70,686 | 70,686 | 2.9% | 100.0% |
| Rockville | MD | 68,417 | 68,417 | 2.8% | 100.0% |
| Waldorf | MD | 67,752 | 67,752 | 2.8% | 100.0% |
| Bethesda | MD | 60,858 | 60,858 | 2.5% | 100.0% |
| Bowie | MD | 58,421 | 58,421 | 2.4% | 100.0% |
| Aspen Hill | MD | 48,759 | 48,759 | 2.0% | 100.0% |
| Wheaton | MD | 48,284 | 48,284 | 2.0% | 100.0% |
| Potomac | MD | 44,965 | 44,965 | 1.8% | 100.0% |
| Hagerstown | MD | 43,909 | 43,909 | 1.8% | 100.0% |
| North Bethesda | MD | 43,828 | 43,828 | 1.8% | 100.0% |
| Clinton | MD | 35,970 | 35,970 | 1.5% | 100.0% |
| College Park | MD | 34,667 | 34,667 | 1.4% | 100.0% |
| Olney | MD | 33,844 | 33,844 | 1.4% | 100.0% |
| Chillum | MD | 33,513 | 33,513 | 1.4% | 100.0% |
| Montgomery Village | MD | 32,032 | 32,032 | 1.3% | 100.0% |
| Laurel | MD | 30,238 | 30,238 | 1.2% | 100.0% |
| South Laurel | MD | 26,112 | 26,112 | 1.1% | 100.0% |
| Suitland | MD | 25,825 | 25,825 | 1.1% | 100.0% |
| Greenbelt | MD | 24,843 | 24,843 | 1.0% | 100.0% |
| North Potomac | MD | 24,410 | 24,410 | 1.0% | 100.0% |
| Scaggsville | MD | 24,333 | 24,333 | 1.0% | 100.0% |
| Fort Washington | MD | 23,717 | 23,717 | 1.0% | 100.0% |
| Fairland | MD | 23,681 | 23,681 | 1.0% | 100.0% |
| Landover | MD | 23,078 | 23,078 | 0.9% | 100.0% |
| Hyattsville | MD | 21,052 | 21,052 | 0.9% | 100.0% |
| Camp Springs | MD | 19,096 | 19,096 | 0.8% | 100.0% |
| Langley Park | MD | 18,755 | 18,755 | 0.8% | 100.0% |
| Cumberland | MD | 18,643 | 18,643 | 0.8% | 100.0% |
| Ballenger Creek | MD | 18,274 | 18,274 | 0.7% | 100.0% |
| Takoma Park | MD | 17,856 | 17,856 | 0.7% | 100.0% |
| Calverton | MD | 17,724 | 17,724 | 0.7% | 100.0% |
| Oxon Hill | MD | 17,722 | 17,722 | 0.7% | 100.0% |
| White Oak | MD | 17,403 | 17,403 | 0.7% | 100.0% |
| Glassmanor | MD | 17,295 | 17,295 | 0.7% | 100.0% |
| Seabrook | MD | 17,287 | 17,287 | 0.7% | 100.0% |
| Redland | MD | 17,242 | 17,242 | 0.7% | 100.0% |
| Beltsville | MD | 16,772 | 16,772 | 0.7% | 100.0% |
| Hillcrest Heights | MD | 16,469 | 16,469 | 0.7% | 100.0% |
| Maryland City | MD | 16,093 | 16,093 | 0.7% | 100.0% |
| East Riverdale | MD | 15,509 | 15,509 | 0.6% | 100.0% |
| Damascus | MD | 15,257 | 15,257 | 0.6% | 100.0% |
| Cloverly | MD | 15,126 | 15,126 | 0.6% | 100.0% |
| Adelphi | MD | 15,086 | 15,086 | 0.6% | 100.0% |
| Colesville | MD | 14,647 | 14,647 | 0.6% | 100.0% |
| Clarksburg | MD | 13,766 | 13,766 | 0.6% | 100.0% |
| New Carrollton | MD | 13,645 | 13,645 | 0.6% | 100.0% |
| Glenmont | MD | 13,529 | 13,529 | 0.6% | 100.0% |
| Glenn Dale | MD | 13,466 | 13,466 | 0.6% | 100.0% |
| Kettering | MD | 12,790 | 12,790 | 0.5% | 100.0% |
| Kemp Mill | MD | 12,564 | 12,564 | 0.5% | 100.0% |
| Forestville | MD | 12,353 | 12,353 | 0.5% | 100.0% |
| Travilah | MD | 12,159 | 12,159 | 0.5% | 100.0% |
| Bensville | MD | 11,923 | 11,923 | 0.5% | 100.0% |
| California | MD | 11,857 | 11,857 | 0.5% | 100.0% |
| Lexington Park | MD | 11,626 | 11,626 | 0.5% | 100.0% |
| La Plata | MD | 11,374 | 11,374 | 0.5% | 100.0% |
| Walker Mill | MD | 11,302 | 11,302 | 0.5% | 100.0% |
| Mitchellville | MD | 10,967 | 10,967 | 0.5% | 100.0% |
| Summerfield | MD | 10,898 | 10,898 | 0.4% | 100.0% |
| Largo | MD | 10,709 | 10,709 | 0.4% | 100.0% |
| Halfway | MD | 10,701 | 10,701 | 0.4% | 100.0% |
| Rosaryville | MD | 10,697 | 10,697 | 0.4% | 100.0% |
| Accokeek | MD | 10,573 | 10,573 | 0.4% | 100.0% |
| Bel Air | MD | 10,395 | 10,395 | 0.4% | 100.0% |
| Lanham | MD | 10,157 | 10,157 | 0.4% | 100.0% |
| Mount Airy | MD | 9,914 | 9,914 | 0.4% | 100.0% |
| Coral Hills | MD | 9,895 | 9,895 | 0.4% | 100.0% |
| Lake Arbor | MD | 9,776 | 9,776 | 0.4% | 100.0% |
| Bladensburg | MD | 9,635 | 9,635 | 0.4% | 100.0% |
| Brock Hall | MD | 9,552 | 9,552 | 0.4% | 100.0% |
| North Kensington | MD | 9,514 | 9,514 | 0.4% | 100.0% |
| Marlboro Village | MD | 9,438 | 9,438 | 0.4% | 100.0% |
| Fort Meade | MD | 9,327 | 0 | 0.4% | 0.0% |
| Friendly | MD | 9,250 | 9,250 | 0.4% | 100.0% |
| Urbana | MD | 9,175 | 9,175 | 0.4% | 100.0% |
| Marlton | MD | 9,031 | 9,031 | 0.4% | 100.0% |
| Brunswick | MD | 9,015 | 9,015 | 0.4% | 100.0% |
| Leisure World | MD | 8,749 | 8,749 | 0.4% | 100.0% |
| Linganore | MD | 8,543 | 8,543 | 0.4% | 100.0% |
| South Kensington | MD | 8,462 | 8,462 | 0.3% | 100.0% |
| Burtonsville | MD | 8,323 | 8,323 | 0.3% | 100.0% |
| Mount Rainier | MD | 8,269 | 8,269 | 0.3% | 100.0% |
| Four Corners | MD | 7,945 | 7,945 | 0.3% | 100.0% |
| Temple Hills | MD | 7,852 | 7,852 | 0.3% | 100.0% |
| Riverdale Park | MD | 7,296 | 7,296 | 0.3% | 100.0% |
| Westphalia | MD | 7,266 | 7,266 | 0.3% | 100.0% |
| Bryans Road | MD | 7,244 | 7,244 | 0.3% | 100.0% |
| Savage | MD | 7,054 | 7,054 | 0.3% | 100.0% |
| Frostburg | MD | 6,972 | 6,972 | 0.3% | 100.0% |
| Robinwood | MD | 6,918 | 6,918 | 0.3% | 100.0% |
| Darnestown | MD | 6,802 | 6,802 | 0.3% | 100.0% |
| Brandywine | MD | 6,719 | 6,719 | 0.3% | 100.0% |
| Forest Glen | MD | 6,582 | 6,582 | 0.3% | 100.0% |
| Walkersville | MD | 6,535 | 6,535 | 0.3% | 100.0% |
| Glenarden | MD | 6,394 | 6,394 | 0.3% | 100.0% |
| Woodlawn | MD | 6,334 | 6,334 | 0.3% | 100.0% |
| Thurmont | MD | 6,308 | 6,308 | 0.3% | 100.0% |
| Cheverly | MD | 6,125 | 6,125 | 0.3% | 100.0% |
| Hillandale | MD | 6,043 | 6,043 | 0.3% | 100.0% |
| Silver Hill | MD | 5,950 | 5,950 | 0.2% | 100.0% |
| District Heights | MD | 5,916 | 5,916 | 0.2% | 100.0% |
| Poolesville | MD | 5,856 | 5,856 | 0.2% | 100.0% |
| Shady Side | MD | 5,803 | 0 | 0.2% | 0.0% |
| Spring Ridge | MD | 5,795 | 5,795 | 0.2% | 100.0% |
| Fountainhead-Orchard Hills | MD | 5,666 | 5,666 | 0.2% | 100.0% |
| Ashton-Sandy Spring | MD | 5,628 | 5,628 | 0.2% | 100.0% |
| Marlow Heights | MD | 5,618 | 5,618 | 0.2% | 100.0% |
| Layhill | MD | 5,169 | 5,169 | 0.2% | 100.0% |
| Middletown | MD | 5,055 | 5,055 | 0.2% | 100.0% |
| Leonardtown | MD | 5,041 | 5,041 | 0.2% | 100.0% |
| Fairwood | MD | 5,031 | 5,031 | 0.2% | 100.0% |
| Peppermill Village | MD | 4,895 | 4,895 | 0.2% | 100.0% |
| Friendship Heights Village | MD | 4,698 | 4,698 | 0.2% | 100.0% |
| Cresaptown | MD | 4,592 | 4,592 | 0.2% | 100.0% |
| Seat Pleasant | MD | 4,518 | 4,518 | 0.2% | 100.0% |
| North Laurel | MD | 4,474 | 4,474 | 0.2% | 100.0% |
| Indian Head | MD | 4,247 | 4,247 | 0.2% | 100.0% |
| West Laurel | MD | 4,230 | 4,230 | 0.2% | 100.0% |
| Capitol Heights | MD | 4,038 | 4,038 | 0.2% | 100.0% |
| Woodmore | MD | 3,936 | 3,936 | 0.2% | 100.0% |
| Boonsboro | MD | 3,850 | 3,850 | 0.2% | 100.0% |
| Golden Beach | MD | 3,796 | 3,796 | 0.2% | 100.0% |
| Brentwood | MD | 3,795 | 3,795 | 0.2% | 100.0% |
| National Harbor | MD | 3,788 | 3,788 | 0.2% | 100.0% |
| Marlboro Meadows | MD | 3,672 | 3,672 | 0.2% | 100.0% |
| La Vale | MD | 3,551 | 3,551 | 0.1% | 100.0% |
| Brookmont | MD | 3,468 | 3,468 | 0.1% | 100.0% |
| Berwyn Heights | MD | 3,325 | 3,325 | 0.1% | 100.0% |
| Smithsburg | MD | 3,194 | 3,194 | 0.1% | 100.0% |
| Maugansville | MD | 3,071 | 3,071 | 0.1% | 100.0% |
| Melwood | MD | 3,051 | 3,051 | 0.1% | 100.0% |
| Springdale | MD | 2,994 | 2,994 | 0.1% | 100.0% |
| Andrews AFB | MD | 2,973 | 2,973 | 0.1% | 100.0% |
| St. James | MD | 2,953 | 2,953 | 0.1% | 100.0% |
| Chevy Chase | MD | 2,927 | 2,927 | 0.1% | 100.0% |
| Chevy Chase | MD | 2,927 | 2,927 | 0.1% | 100.0% |
| Emmitsburg | MD | 2,920 | 2,920 | 0.1% | 100.0% |
| Forest Heights | MD | 2,639 | 2,639 | 0.1% | 100.0% |
| Croom | MD | 2,631 | 2,631 | 0.1% | 100.0% |
| Braddock Heights | MD | 2,608 | 2,608 | 0.1% | 100.0% |
| Paramount-Long Meadow | MD | 2,571 | 2,571 | 0.1% | 100.0% |
| Potomac Park | MD | 2,530 | 2,530 | 0.1% | 100.0% |
| Konterra | MD | 2,527 | 2,527 | 0.1% | 100.0% |
| Dunkirk | MD | 2,520 | 0 | 0.1% | 0.0% |
| University Park | MD | 2,431 | 2,431 | 0.1% | 100.0% |
| Derwood | MD | 2,381 | 2,381 | 0.1% | 100.0% |
| Adamstown | MD | 2,372 | 2,372 | 0.1% | 100.0% |
| Wilson-Conococheague | MD | 2,282 | 2,282 | 0.1% | 100.0% |
| Cabin John | MD | 2,280 | 2,280 | 0.1% | 100.0% |
| Hughesville | MD | 2,197 | 2,197 | 0.1% | 100.0% |
| North Beach | MD | 2,178 | 0 | 0.1% | 0.0% |
| Kensington | MD | 2,155 | 2,155 | 0.1% | 100.0% |
| Baden | MD | 2,128 | 2,128 | 0.1% | 100.0% |
| Mountain Lake Park | MD | 2,118 | 2,118 | 0.1% | 100.0% |
| Jefferson | MD | 2,111 | 2,111 | 0.1% | 100.0% |
| Williamsport | MD | 2,102 | 2,102 | 0.1% | 100.0% |
| Chevy Chase Village | MD | 2,071 | 2,071 | 0.1% | 100.0% |
| Fulton | MD | 2,049 | 2,049 | 0.1% | 100.0% |
| Queenland | MD | 1,929 | 1,929 | 0.1% | 100.0% |
| Myersville | MD | 1,865 | 1,865 | 0.1% | 100.0% |
| Oakland | MD | 1,813 | 1,813 | 0.1% | 100.0% |
| Landover Hills | MD | 1,799 | 1,799 | 0.1% | 100.0% |
| Westernport | MD | 1,769 | 1,769 | 0.1% | 100.0% |
| New Market | MD | 1,609 | 1,609 | 0.1% | 100.0% |
| Edmonston | MD | 1,609 | 1,609 | 0.1% | 100.0% |
| Spencerville | MD | 1,594 | 1,594 | 0.1% | 100.0% |
| Colmar Manor | MD | 1,586 | 1,586 | 0.1% | 100.0% |
| Hancock | MD | 1,570 | 1,570 | 0.1% | 100.0% |
| Fairmount Heights | MD | 1,522 | 1,522 | 0.1% | 100.0% |
| Mechanicsville | MD | 1,508 | 1,508 | 0.1% | 100.0% |
| Cavetown | MD | 1,473 | 1,473 | 0.1% | 100.0% |
| Point of Rocks | MD | 1,466 | 1,466 | 0.1% | 100.0% |
| Bartonsville | MD | 1,451 | 1,451 | 0.1% | 100.0% |
| Charlotte Hall | MD | 1,420 | 1,420 | 0.1% | 100.0% |
| Cottage City | MD | 1,322 | 1,322 | 0.1% | 100.0% |
| Morningside | MD | 1,235 | 1,235 | 0.1% | 100.0% |
| Keedysville | MD | 1,229 | 1,229 | 0.1% | 100.0% |
| Somerset | MD | 1,203 | 1,203 | 0.1% | 100.0% |
| Cobb Island | MD | 1,166 | 1,166 | 0.1% | 100.0% |
| Potomac Heights | MD | 1,117 | 1,117 | 0.1% | 100.0% |
| Woodsboro | MD | 1,114 | 1,114 | 0.1% | 100.0% |
| Highfield-Cascade | MD | 1,112 | 1,112 | 0.1% | 100.0% |
| Bowling Green | MD | 1,077 | 1,077 | 0.0% | 100.0% |
| Highland | MD | 1,034 | 1,034 | 0.0% | 100.0% |
| Buckeystown | MD | 1,019 | 1,019 | 0.0% | 100.0% |
| Chevy Chase View | MD | 1,017 | 1,017 | 0.0% | 100.0% |
| Garrett Park | MD | 1,004 | 1,004 | 0.0% | 100.0% |
| Lonaconing | MD | 987 | 987 | 0.0% | 100.0% |
| Aquasco | MD | 981 | 981 | 0.0% | 100.0% |
| Grantsville | MD | 951 | 951 | 0.0% | 100.0% |
| Martin's Additions | MD | 950 | 950 | 0.0% | 100.0% |
| Libertytown | MD | 950 | 950 | 0.0% | 100.0% |
| Eckhart Mines | MD | 932 | 932 | 0.0% | 100.0% |
| Mount Savage | MD | 873 | 873 | 0.0% | 100.0% |
| Piney Point | MD | 864 | 864 | 0.0% | 100.0% |
| Funkstown | MD | 858 | 858 | 0.0% | 100.0% |
| Chevy Chase Section Three | MD | 802 | 802 | 0.0% | 100.0% |
| Upper Marlboro | MD | 718 | 718 | 0.0% | 100.0% |
| Cedarville | MD | 717 | 717 | 0.0% | 100.0% |
| Rawlings | MD | 693 | 693 | 0.0% | 100.0% |
| North Chevy Chase | MD | 691 | 691 | 0.0% | 100.0% |
| Chevy Chase Section Five | MD | 684 | 684 | 0.0% | 100.0% |
| Bryantown | MD | 655 | 655 | 0.0% | 100.0% |
| Bowmans Addition | MD | 627 | 627 | 0.0% | 100.0% |
| North Brentwood | MD | 587 | 587 | 0.0% | 100.0% |
| Laytonsville | MD | 586 | 586 | 0.0% | 100.0% |
| Fairplay | MD | 580 | 580 | 0.0% | 100.0% |
| Leitersburg | MD | 573 | 573 | 0.0% | 100.0% |
| Ellerslie | MD | 572 | 572 | 0.0% | 100.0% |
| Mount Aetna | MD | 561 | 561 | 0.0% | 100.0% |
| Sharpsburg | MD | 561 | 561 | 0.0% | 100.0% |
| Finzel | MD | 547 | 547 | 0.0% | 100.0% |
| Pomfret | MD | 517 | 517 | 0.0% | 100.0% |
| Mount Lena | MD | 515 | 515 | 0.0% | 100.0% |
| Washington Grove | MD | 512 | 512 | 0.0% | 100.0% |
| McCoole | MD | 511 | 511 | 0.0% | 100.0% |
| Loch Lynn Heights | MD | 483 | 483 | 0.0% | 100.0% |
| Midland | MD | 476 | 476 | 0.0% | 100.0% |
| Tilghmanton | MD | 465 | 465 | 0.0% | 100.0% |
| Tall Timbers | MD | 462 | 462 | 0.0% | 100.0% |
| Barton | MD | 457 | 457 | 0.0% | 100.0% |
| Corriganville | MD | 455 | 455 | 0.0% | 100.0% |
| Pinesburg | MD | 449 | 449 | 0.0% | 100.0% |
| Friendsville | MD | 427 | 427 | 0.0% | 100.0% |
| Monrovia | MD | 416 | 416 | 0.0% | 100.0% |
| San Mar | MD | 384 | 384 | 0.0% | 100.0% |
| Clear Spring | MD | 375 | 375 | 0.0% | 100.0% |
| Grahamtown | MD | 364 | 364 | 0.0% | 100.0% |
| Zihlman | MD | 362 | 362 | 0.0% | 100.0% |
| Downsville | MD | 355 | 355 | 0.0% | 100.0% |
| Sabillasville | MD | 354 | 354 | 0.0% | 100.0% |
| Pleasant Grove | MD | 353 | 353 | 0.0% | 100.0% |
| Bagtown | MD | 333 | 333 | 0.0% | 100.0% |
| Accident | MD | 332 | 332 | 0.0% | 100.0% |
| Midlothian | MD | 320 | 320 | 0.0% | 100.0% |
| Fort Ritchie | MD | 314 | 314 | 0.0% | 100.0% |
| Bloomington | MD | 305 | 305 | 0.0% | 100.0% |
| Deer Park | MD | 300 | 300 | 0.0% | 100.0% |
| Franklin | MD | 290 | 290 | 0.0% | 100.0% |
| Kitzmiller | MD | 288 | 288 | 0.0% | 100.0% |
| Glen Echo | MD | 285 | 285 | 0.0% | 100.0% |
| Danville | MD | 271 | 271 | 0.0% | 100.0% |
| Rosemont | MD | 269 | 269 | 0.0% | 100.0% |
| Crellin | MD | 264 | 264 | 0.0% | 100.0% |
| Benedict | MD | 261 | 261 | 0.0% | 100.0% |
| St. George Island | MD | 257 | 257 | 0.0% | 100.0% |
| Breathedsville | MD | 254 | 254 | 0.0% | 100.0% |
| Beaver Creek | MD | 251 | 251 | 0.0% | 100.0% |
| Moscow | MD | 240 | 240 | 0.0% | 100.0% |
| Chewsville | MD | 238 | 238 | 0.0% | 100.0% |
| Mapleville | MD | 238 | 238 | 0.0% | 100.0% |
| Shaft | MD | 235 | 235 | 0.0% | 100.0% |
| Garretts Mill | MD | 234 | 234 | 0.0% | 100.0% |
| Edgemont | MD | 231 | 231 | 0.0% | 100.0% |
| Greensburg | MD | 229 | 229 | 0.0% | 100.0% |
| Jugtown | MD | 204 | 204 | 0.0% | 100.0% |
| Queen Anne | MD | 192 | 192 | 0.0% | 100.0% |
| Sandy Hook | MD | 188 | 188 | 0.0% | 100.0% |
| Cearfoss | MD | 178 | 178 | 0.0% | 100.0% |
| Flintstone | MD | 177 | 177 | 0.0% | 100.0% |
| Rohrersville | MD | 175 | 175 | 0.0% | 100.0% |
| Bier | MD | 173 | 173 | 0.0% | 100.0% |
| Trego-Rohrersville Station | MD | 172 | 172 | 0.0% | 100.0% |
| Charlton | MD | 171 | 171 | 0.0% | 100.0% |
| Brookeville | MD | 168 | 168 | 0.0% | 100.0% |
| Pecktonville | MD | 167 | 167 | 0.0% | 100.0% |
| Ringgold | MD | 166 | 166 | 0.0% | 100.0% |
| Dargan | MD | 165 | 165 | 0.0% | 100.0% |
| Mount Briar | MD | 160 | 160 | 0.0% | 100.0% |
| Pondsville | MD | 158 | 158 | 0.0% | 100.0% |
| Carlos | MD | 153 | 153 | 0.0% | 100.0% |
| Burkittsville | MD | 145 | 145 | 0.0% | 100.0% |
| Barnesville | MD | 145 | 145 | 0.0% | 100.0% |
| Vale Summit | MD | 139 | 139 | 0.0% | 100.0% |
| Yarrowsburg | MD | 133 | 133 | 0.0% | 100.0% |
| Mercersville | MD | 130 | 130 | 0.0% | 100.0% |
| Gilmore | MD | 127 | 127 | 0.0% | 100.0% |
| Kemps Mill | MD | 126 | 126 | 0.0% | 100.0% |
| Klondike | MD | 118 | 118 | 0.0% | 100.0% |
| Nikep | MD | 116 | 116 | 0.0% | 100.0% |
| Woodland | MD | 113 | 113 | 0.0% | 100.0% |
| Jennings | MD | 113 | 113 | 0.0% | 100.0% |
| Gapland | MD | 109 | 109 | 0.0% | 100.0% |
| Rock Point | MD | 107 | 107 | 0.0% | 100.0% |
| Gorman | MD | 106 | 106 | 0.0% | 100.0% |
| Dawson | MD | 103 | 103 | 0.0% | 100.0% |
| Brownsville | MD | 89 | 89 | 0.0% | 100.0% |
| Antietam | MD | 89 | 89 | 0.0% | 100.0% |
| Oldtown | MD | 86 | 86 | 0.0% | 100.0% |
| Hutton | MD | 86 | 86 | 0.0% | 100.0% |
| Big Spring | MD | 84 | 84 | 0.0% | 100.0% |
| Luke | MD | 84 | 84 | 0.0% | 100.0% |
| Big Pool | MD | 82 | 82 | 0.0% | 100.0% |
| Fairview | MD | 76 | 76 | 0.0% | 100.0% |
| Barrelville | MD | 73 | 73 | 0.0% | 100.0% |
| Clarysville | MD | 73 | 73 | 0.0% | 100.0% |
| Detmold | MD | 71 | 71 | 0.0% | 100.0% |
| Middleburg | MD | 70 | 70 | 0.0% | 100.0% |
| Eagle Harbor | MD | 67 | 67 | 0.0% | 100.0% |
| Indian Springs | MD | 64 | 64 | 0.0% | 100.0% |
| Swanton | MD | 58 | 58 | 0.0% | 100.0% |
| National | MD | 56 | 56 | 0.0% | 100.0% |
| Ernstville | MD | 56 | 56 | 0.0% | 100.0% |
| Spring Gap | MD | 55 | 55 | 0.0% | 100.0% |
| Reid | MD | 54 | 54 | 0.0% | 100.0% |
| Little Orleans | MD | 42 | 42 | 0.0% | 100.0% |
| Ocean | MD | 32 | 32 | 0.0% | 100.0% |
| Bakersville | MD | 30 | 30 | 0.0% | 100.0% |
| Eakles Mill | MD | 27 | 27 | 0.0% | 100.0% |
| Port Tobacco Village | MD | 21 | 21 | 0.0% | 100.0% |
City population is shown in full. The share of each city inside 240 is measured from Census tract centroids, not estimated from a rate-center match – so a city split between two codes appears on both, at the fraction each one actually holds. The “% of listed-city population” column uses the full populations of the cities listed here.
What counties does area code 240 cover?
2,956,782 residents across 12 counties, counted inside the 240 boundary — a county split between codes contributes only its part.
| County | State | Population in 240 | % of area-code footprint | % of County |
|---|---|---|---|---|
| Montgomery County | MD | 1,062,061 | 36% | 100% |
| Prince George's County | MD | 967,201 | 33% | 100% |
| Frederick County | MD | 268,694 | 9% | 99% |
| Charles County | MD | 166,617 | 6% | 100% |
| Washington County | MD | 154,705 | 5% | 100% |
| St. Mary's County | MD | 113,777 | 4% | 100% |
| Howard County | MD | 89,914 | 3% | 27% |
| Allegany County | MD | 68,106 | 2% | 100% |
| Garrett County | MD | 28,806 | 1% | 100% |
| Anne Arundel County | MD | 19,157 | 1% | 3% |
| Carroll County | MD | 10,782 | 0% | 6% |
| Berkeley County | WV | 6,962 | 0% | 6% |
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 240 been reported for unwanted calls?
Yes – 1,261 unwanted-call complaints were reported to the FTC for numbers showing a 240 area code (May 29 – Aug 14, 2026).
- 53% robocalls
- ↓ 4% vs prior period
Most-reported subjects
- Other41%514
- Reducing your debt (credit cards, mortgage, student loans)13%163
- Calls pretending to be government, businesses, or family and friends13%162
Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-08-17.
Which prefixes and exchanges belong to area code 240?
78% assigned to a telco
- 72% Landline
- 28% Wireless
- 0% Unknown
of 780 | ||
| Prefix | Usage | Carrier |
|---|---|---|
| (240)200- | Landline | Bandwidth.Com Clec |
| (240)201- | Landline | Peerless Network Of Maryland |
| (240)202- | Landline | Onvoy |
| (240)203- | Wireless | Sprint Spectrum |
| (240)204- | Wireless | Verizon Wireless |
| (240)205- | Wireless | New Cingular Wireless Pcs |
| (240)206- | Landline | Mcimetro Access Transmission Services |
| (240)207- | Landline | Cavalier East |
| (240)208- | Landline | Peerless Network Of Maryland |
| (240)209- | Landline | Peerless Network Of Maryland |
| (240)210- | Wireless | New Cingular Wireless Pcs |
| (240)212- | Landline | Core Communications |
| (240)213- | Landline | Peerless Network Of Maryland |
| (240)214- | Landline | Peerless Network Of Maryland |
| (240)215- | Landline | Level 3 Communications |
| (240)216- | Wireless | Sprint Spectrum |
| (240)217- | Landline | Omnipoint Communications Cap Operations |
| (240)218- | Landline | Peerless Network Of Maryland |
| (240)219- | Landline | Peerless Network Of Maryland |
| (240)220- | Landline | Peerless Network Of Maryland |
| (240)221- | Landline | Verizon Maryland |
| (240)222- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)223- | Landline | Mcimetro Access Transmission Services |
| (240)224- | Wireless | Verizon Wireless |
| (240)225- | Landline | Core Communications |
| (240)226- | Landline | Onvoy |
| (240)228- | Landline | Verizon Maryland |
| (240)229- | Landline | Level 3 Communications |
| (240)230- | Landline | Global Crossing Local Services |
| (240)231- | Landline | Core Communications |
| (240)232- | Landline | Level 3 Communications |
| (240)233- | Landline | Teleport Communications America |
| (240)234- | Wireless | Verizon Wireless |
| (240)235- | Landline | Paetec Communications |
| (240)236- | Landline | Verizon Maryland |
| (240)237- | Landline | Teleport Communications America |
| (240)238- | Landline | Paetec Communications |
| (240)239- | Landline | Core Communications |
| (240)240- | Landline | Fractel |
| (240)241- | Landline | Starpower Communications |
| (240)242- | Landline | Starpower Communications |
| (240)243- | Landline | Mcimetro Access Transmission Services |
| (240)244- | Landline | Starpower Communications |
| (240)245- | Landline | Starpower Communications |
| (240)246- | Landline | Starpower Communications |
| (240)247- | Landline | Mcimetro Access Transmission Services |
| (240)248- | Landline | Peerless Network Of Maryland |
| (240)249- | Landline | Teleport Communications America |
| (240)250- | Landline | Peerless Network Of Maryland |
| (240)251- | Landline | Core Communications |
| (240)252- | Landline | Level 3 Communications |
| (240)253- | Landline | Global Crossing Local Services |
| (240)254- | Landline | Teleport Communications America |
| (240)255- | Landline | Peerless Network Of Maryland |
| (240)256- | Landline | Teleport Communications America |
| (240)257- | Landline | Teleport Communications America |
| (240)258- | Landline | Teleport Communications America |
| (240)259- | Landline | Onvoy Spectrum |
| (240)260- | Landline | Mcimetro Access Transmission Services |
| (240)261- | Landline | Onvoy |
| (240)262- | Wireless | Sprint Spectrum |
| (240)263- | Wireless | Sprint Spectrum |
| (240)264- | Landline | Verizon Maryland |
| (240)265- | Wireless | Sprint Spectrum |
| (240)266- | Landline | Peerless Network Of Maryland |
| (240)267- | Wireless | Verizon Wireless |
| (240)268- | Landline | Mcimetro Access Transmission Services |
| (240)269- | Landline | Peerless Network Of Maryland |
| (240)270- | Wireless | Verizon Wireless |
| (240)271- | Wireless | New Cingular Wireless Pcs |
| (240)272- | Wireless | Sprint Spectrum |
| (240)273- | Landline | Level 3 Communications |
| (240)274- | Wireless | New Cingular Wireless Pcs |
| (240)275- | Landline | Core Communications |
| (240)276- | Landline | Verizon Maryland |
| (240)277- | Wireless | Sprint Spectrum |
| (240)278- | Wireless | Verizon Wireless |
| (240)279- | Landline | Core Communications |
| (240)280- | Landline | Comcast Ip Phone |
| (240)281- | Wireless | New Cingular Wireless Pcs |
| (240)282- | Landline | Peerless Network Of Maryland |
| (240)283- | Landline | Paetec Communications |
| (240)284- | Landline | Level 3 Communications |
| (240)285- | Wireless | Verizon Wireless |
| (240)286- | Wireless | Sprint Spectrum |
| (240)287- | Landline | Core Communications |
| (240)288- | Landline | Comcast Ip Phone |
| (240)289- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)290- | Landline | Mcimetro Access Transmission Services |
| (240)291- | Wireless | New Cingular Wireless Pcs |
| (240)292- | Landline | Verizon Maryland |
| (240)293- | Landline | Starpower Communications |
| (240)294- | Landline | Mcimetro Access Transmission Services |
| (240)295- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)296- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)297- | Landline | Level 3 Communications |
| (240)298- | Wireless | Verizon Wireless |
| (240)299- | Wireless | Sprint Spectrum |
| (240)300- | Wireless | Verizon Wireless |
| (240)301- | Landline | Onvoy |
| (240)302- | Wireless | New Cingular Wireless Pcs |
| (240)303- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)304- | Wireless | Sprint Spectrum |
| (240)305- | Wireless | Sprint Spectrum |
| (240)306- | Landline | Mcimetro Access Transmission Services |
| (240)307- | Landline | At&T |
| (240)308- | Wireless | New Cingular Wireless Pcs |
| (240)309- | Wireless | Verizon Wireless |
| (240)310- | Landline | United States Cel Md |
| (240)312- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)313- | Landline | Verizon Maryland |
| (240)314- | Landline | Verizon Maryland |
| (240)315- | Landline | Verizon Maryland |
| (240)316- | Wireless | Sprint Spectrum |
| (240)317- | Landline | Starpower Communications |
| (240)318- | Landline | Verizon Maryland |
| (240)319- | Wireless | Verizon Wireless |
| (240)320- | Landline | Cavalier East |
| (240)321- | Landline | United States Cel Md |
| (240)322- | Landline | Core Communications |
| (240)323- | Landline | Core Communications |
| (240)324- | Landline | Ymax Communications |
| (240)325- | Landline | Core Communications |
| (240)326- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)327- | Landline | Core Communications |
| (240)328- | Landline | Verizon Maryland |
| (240)329- | Landline | Level 3 Communications |
| (240)330- | Wireless | Sprint Spectrum |
| (240)331- | Landline | Peerless Network Of Maryland |
| (240)332- | Landline | Peerless Network Of Maryland |
| (240)333- | Landline | Cavalier East |
| (240)334- | Landline | Global Crossing Local Services |
| (240)335- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)336- | Landline | Core Communications |
| (240)337- | Landline | Onvoy |
| (240)338- | Wireless | Verizon Wireless |
| (240)339- | Landline | Cavalier East |
| (240)340- | Wireless | Sprint Spectrum |
| (240)341- | Landline | Mcimetro Access Transmission Services |
| (240)342- | Landline | Starpower Communications |
| (240)343- | Wireless | Verizon Wireless |
| (240)344- | Wireless | New Cingular Wireless Pcs |
| (240)345- | Landline | Level 3 Communications |
| (240)346- | Wireless | Sprint Spectrum |
| (240)347- | Landline | Bandwidth.Com Clec |
| (240)348- | Landline | Level 3 Communications |
| (240)349- | Landline | Global Crossing Local Services |
| (240)350- | Wireless | Sprint Spectrum |
| (240)351- | Wireless | Sprint Spectrum |
| (240)352- | Landline | Peerless Network Of Maryland |
| (240)353- | Wireless | Sprint Spectrum |
| (240)354- | Wireless | Sprint Spectrum |
| (240)355- | Wireless | Sprint Spectrum |
| (240)356- | Landline | Level 3 Communications |
| (240)357- | Wireless | Verizon Wireless |
| (240)358- | Landline | Peerless Network Of Maryland |
| (240)359- | Landline | Peerless Network Of Maryland |
| (240)360- | Landline | Omnipoint Communications Cap Operations |
| (240)361- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)362- | Landline | Verizon Maryland |
| (240)363- | Landline | Onvoy |
| (240)364- | Landline | Cavalier East |
| (240)365- | Landline | Baltimore-Washington Telephone (Bwt) |
| (240)366- | Landline | At&T |
| (240)367- | Wireless | Sprint Spectrum |
| (240)368- | Landline | Peerless Network Of Maryland |
| (240)369- | Landline | Core Communications |
| (240)370- | Wireless | Sprint Spectrum |
| (240)371- | Landline | Peerless Network Of Maryland |
| (240)372- | Wireless | Sprint Spectrum |
| (240)373- | Landline | Verizon Maryland |
| (240)374- | Landline | Global Crossing Local Services |
| (240)375- | Wireless | Sprint Spectrum |
| (240)376- | Landline | Peerless Network Of Maryland |
| (240)377- | Landline | Global Crossing Local Services |
| (240)378- | Landline | Core Communications |
| (240)379- | Landline | Verizon Maryland |
| (240)380- | Wireless | Verizon Wireless |
| (240)381- | Wireless | New Cingular Wireless Pcs |
| (240)382- | Landline | Teleport Communications America |
| (240)383- | Wireless | New Cingular Wireless Pcs |
| (240)384- | Landline | Peerless Network Of Maryland |
| (240)385- | Landline | Verizon Maryland |
| (240)386- | Landline | Verizon Maryland |
| (240)387- | Landline | Cavalier East |
| (240)388- | Wireless | Sprint Spectrum |
| (240)389- | Landline | Atx Communications Services, Ltd. |
| (240)390- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)391- | Landline | Global Crossing Local Services |
| (240)392- | Landline | Starpower Communications |
| (240)393- | Wireless | Verizon Wireless |
| (240)394- | Wireless | New Cingular Wireless Pcs |
| (240)395- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)396- | Landline | Global Crossing Local Services |
| (240)397- | Wireless | Verizon Wireless |
| (240)398- | Wireless | Sprint Spectrum |
| (240)399- | Landline | Mcimetro Access Transmission Services |
| (240)400- | Wireless | Sprint Spectrum |
| (240)401- | Wireless | New Cingular Wireless Pcs |
| (240)402- | Landline | Mcimetro Access Transmission Services |
| (240)403- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)404- | Landline | Mcimetro Access Transmission Services |
| (240)405- | Landline | Us Lec Of Maryland |
| (240)406- | Wireless | New Cingular Wireless Pcs |
| (240)407- | Landline | Global Crossing Local Services |
| (240)408- | Wireless | New Cingular Wireless Pcs |
| (240)409- | Wireless | New Cingular Wireless Pcs |
| (240)410- | Landline | Omnipoint Communications Cap Operations |
| (240)412- | Wireless | Sprint Spectrum |
| (240)413- | Landline | Omnipoint Communications Cap Operations |
| (240)414- | Landline | Peerless Network Of Maryland |
| (240)415- | Landline | Ymax Communications |
| (240)416- | Wireless | New Cingular Wireless Pcs |
| (240)417- | Wireless | Sprint Spectrum |
| (240)418- | Wireless | Sprint Spectrum |
| (240)419- | Wireless | Verizon Wireless |
| (240)420- | Landline | Verizon Maryland |
| (240)421- | Landline | Omnipoint Communications Cap Operations |
| (240)422- | Landline | Omnipoint Communications Cap Operations |
| (240)423- | Landline | Omnipoint Communications Cap Operations |
| (240)424- | Wireless | Sprint Spectrum |
| (240)425- | Landline | Omnipoint Communications Cap Operations |
| (240)426- | Wireless | Sprint Spectrum |
| (240)427- | Landline | Mcimetro Access Transmission Services |
| (240)428- | Landline | Bandwidth.Com Clec |
| (240)429- | Wireless | Verizon Wireless |
| (240)430- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)431- | Wireless | Sprint Spectrum |
| (240)432- | Wireless | Sprint Spectrum |
| (240)433- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)434- | Landline | Level 3 Communications |
| (240)435- | Wireless | Verizon Wireless |
| (240)436- | Landline | Level 3 Communications |
| (240)437- | Landline | Mcimetro Access Transmission Services |
| (240)438- | Wireless | Sprint Spectrum |
| (240)439- | Wireless | Verizon Wireless |
| (240)440- | Wireless | New Cingular Wireless Pcs |
| (240)441- | Landline | Omnipoint Communications Cap Operations |
| (240)442- | Landline | Verizon Maryland |
| (240)443- | Landline | Onvoy |
| (240)444- | Wireless | Verizon Wireless |
| (240)445- | Wireless | Sprint Spectrum |
| (240)446- | Wireless | Verizon Wireless |
| (240)447- | Wireless | New Cingular Wireless Pcs |
| (240)448- | Wireless | Sprint Spectrum |
| (240)449- | Wireless | New Cingular Wireless Pcs |
| (240)450- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)451- | Landline | Onvoy |
| (240)452- | Landline | Lumos Networks |
| (240)453- | Landline | Verizon Maryland |
| (240)454- | Landline | Paetec Communications |
| (240)455- | Landline | Paetec Communications |
| (240)456- | Landline | Verizon Maryland |
| (240)457- | Wireless | Verizon Wireless |
| (240)458- | Wireless | Verizon Wireless |
| (240)459- | Wireless | Verizon Wireless |
| (240)460- | Wireless | New Cingular Wireless Pcs |
| (240)461- | Wireless | New Cingular Wireless Pcs |
| (240)462- | Wireless | Sprint Spectrum |
| (240)463- | Wireless | New Cingular Wireless Pcs |
| (240)464- | Wireless | Sprint Spectrum |
| (240)465- | Landline | Peerless Network Of Maryland |
| (240)466- | Wireless | New Cingular Wireless Pcs |
| (240)467- | Landline | Comcast Ip Phone |
| (240)468- | Wireless | Sprint Spectrum |
| (240)469- | Wireless | Sprint Spectrum |
| (240)470- | Wireless | Verizon Wireless |
| (240)471- | Landline | Global Crossing Local Services |
| (240)472- | Wireless | New Cingular Wireless Pcs |
| (240)473- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)474- | Landline | Baltimore-Washington Telephone (Bwt) |
| (240)475- | Wireless | New Cingular Wireless Pcs |
| (240)476- | Landline | Omnipoint Communications Cap Operations |
| (240)477- | Landline | Lightwave Communications |
| (240)478- | Wireless | New Cingular Wireless Pcs |
| (240)479- | Wireless | Verizon Wireless |
| (240)480- | Wireless | Sprint Spectrum |
| (240)481- | Landline | Omnipoint Communications Cap Operations |
| (240)482- | Landline | Us Lec Of Maryland |
| (240)483- | Landline | Comcast Ip Phone |
| (240)484- | Wireless | New Cingular Wireless Pcs |
| (240)485- | Landline | Us Lec Of Maryland |
| (240)486- | Landline | Omnipoint Communications Cap Operations |
| (240)487- | Landline | Us Lec Of Maryland |
| (240)488- | Landline | Shentel Communications |
| (240)489- | Landline | Mcimetro Access Transmission Services |
| (240)490- | Landline | Omnipoint Communications Cap Operations |
| (240)491- | Landline | Global Crossing Local Services |
| (240)492- | Landline | Us Lec Of Maryland |
| (240)493- | Landline | Us Lec Of Maryland |
| (240)494- | Landline | Cavalier East |
| (240)495- | Wireless | Verizon Wireless |
| (240)496- | Wireless | Verizon Wireless |
| (240)497- | Landline | Verizon Maryland |
| (240)498- | Wireless | Sprint Spectrum |
| (240)499- | Landline | Us Lec Of Maryland |
| (240)500- | Landline | Us Lec Of Maryland |
| (240)501- | Wireless | Sprint Spectrum |
| (240)502- | Wireless | Sprint Spectrum |
| (240)503- | Landline | Peerless Network Of Maryland |
| (240)504- | Wireless | Sprint Spectrum |
| (240)505- | Landline | Omnipoint Communications Cap Operations |
| (240)506- | Wireless | New Cingular Wireless Pcs |
| (240)507- | Wireless | Verizon Wireless |
| (240)508- | Wireless | Sprint Spectrum |
| (240)509- | Landline | Bandwidth.Com Clec |
| (240)510- | Landline | Mcimetro Access Transmission Services |
| (240)512- | Landline | Core Communications |
| (240)513- | Wireless | Sprint Spectrum |
| (240)514- | Landline | Us Lec Of Maryland |
| (240)515- | Wireless | New Cingular Wireless Pcs |
| (240)516- | Landline | Us Lec Of Maryland |
| (240)517- | Wireless | Verizon Wireless |
| (240)518- | Landline | Nuso |
| (240)519- | Wireless | Sprint Spectrum |
| (240)520- | Wireless | Sprint Spectrum |
| (240)521- | Wireless | New Cingular Wireless Pcs |
| (240)522- | Wireless | Sprint Spectrum |
| (240)523- | Landline | Mcimetro Access Transmission Services |
| (240)524- | Landline | Peerless Network Of Maryland |
| (240)525- | Landline | Peerless Network Of Maryland |
| (240)526- | Landline | Peerless Network Of Maryland |
| (240)527- | Landline | Verizon Maryland |
| (240)528- | Landline | Level 3 Communications |
| (240)529- | Landline | Verizon Maryland |
| (240)530- | Landline | Local Access |
| (240)531- | Landline | Telnyx |
| (240)532- | Wireless | Verizon Wireless |
| (240)533- | Landline | Teleport Communications America |
| (240)534- | Wireless | Verizon Wireless |
| (240)535- | Wireless | New Cingular Wireless Pcs |
| (240)536- | Landline | Peerless Network Of Maryland |
| (240)537- | Landline | Atlantech Online |
| (240)538- | Landline | Mcimetro Access Transmission Services |
| (240)539- | Landline | Peerless Network Of Maryland |
| (240)540- | Landline | Wide Voice |
| (240)541- | Wireless | Sprint Spectrum |
| (240)542- | Landline | Us Lec Of Maryland |
| (240)543- | Wireless | Sprint Spectrum |
| (240)544- | Landline | Us Lec Of Maryland |
| (240)545- | Landline | Us Lec Of Maryland |
| (240)546- | Landline | Us Lec Of Maryland |
| (240)547- | Landline | Level 3 Communications |
| (240)548- | Landline | Core Communications |
| (240)549- | Wireless | Verizon Wireless |
| (240)550- | Wireless | New Cingular Wireless Pcs |
| (240)551- | Wireless | New Cingular Wireless Pcs |
| (240)552- | Wireless | New Cingular Wireless Pcs |
| (240)553- | Landline | Mcimetro Access Transmission Services |
| (240)554- | Landline | Mcimetro Access Transmission Services |
| (240)556- | Landline | Paetec Communications |
| (240)557- | Landline | Omnipoint Communications Cap Operations |
| (240)558- | Landline | Cavalier Telephone Mid-Atlantic |
| (240)559- | Landline | Mcimetro Access Transmission Services |
| (240)560- | Landline | Mcimetro Access Transmission Services |
| (240)561- | Wireless | Verizon Wireless |
| (240)562- | Landline | Mcimetro Access Transmission Services |
| (240)563- | Landline | Onvoy |
| (240)564- | Landline | Omnipoint Communications Cap Operations |
| (240)565- | Landline | Omnipoint Communications Cap Operations |
| (240)566- | Landline | Verizon Maryland |
| (240)567- | Landline | Verizon Maryland |
| (240)568- | Landline | Verizon Maryland |
| (240)569- | Landline | Bandwidth.Com Clec |
| (240)570- | Landline | Onvoy |
| (240)571- | Wireless | Verizon Wireless |
| (240)572- | Wireless | Verizon Wireless |
| (240)573- | Landline | Global Crossing Local Services |
| (240)574- | Wireless | New Cingular Wireless Pcs |
| (240)575- | Landline | Level 3 Communications |
| (240)576- | Landline | Vonage America |
| (240)577- | Wireless | Verizon Wireless |
| (240)578- | Wireless | Verizon Wireless |
| (240)579- | Landline | Omnipoint Communications Cap Operations |
| (240)580- | Wireless | Sprint Spectrum |
| (240)581- | Landline | Paetec Communications |
| (240)582- | Landline | Verizon Maryland |
| (240)583- | Landline | Verizon Maryland |
| (240)584- | Landline | Omnipoint Communications Cap Operations |
| (240)585- | Wireless | Verizon Wireless |
| (240)586- | Landline | Verizon Maryland |
| (240)587- | Wireless | Verizon Wireless |
| (240)588- | Landline | Mcimetro Access Transmission Services |
| (240)589- | Wireless | New Cingular Wireless Pcs |
| (240)590- | Landline | Metropcs |
| (240)591- | Landline | Shentel Communications |
| (240)592- | Landline | Verizon Maryland |
| (240)593- | Landline | Omnipoint Communications Cap Operations |
| (240)594- | Landline | Bandwidth.Com Clec |
| (240)595- | Wireless | Verizon Wireless |
| (240)596- | Landline | Core Communications |
| (240)597- | Landline | Peerless Network Of Maryland |
| (240)598- | Landline | Core Communications |
| (240)599- | Landline | Level 3 Communications |
| (240)600- | Wireless | Sprint Spectrum |
| (240)601- | Wireless | Sprint Spectrum |
| (240)602- | Wireless | Sprint Spectrum |
| (240)603- | Wireless | Sprint Spectrum |
| (240)604- | Wireless | Sprint Spectrum |
| (240)605- | Wireless | Sprint Spectrum |
| (240)606- | Wireless | Sprint Spectrum |
| (240)607- | Landline | Global Crossing Local Services |
| (240)608- | Landline | Nuso |
| (240)609- | Wireless | New Cingular Wireless Pcs |
| (240)610- | Landline | Core Communications |
| (240)612- | Landline | Level 3 Telecom Of Maryland |
| (240)613- | Landline | Us Lec Of Maryland |
| (240)614- | Landline | Metropcs |
| (240)615- | Landline | Metropcs |
| (240)616- | Landline | Mcimetro Access Transmission Services |
| (240)617- | Landline | Bandwidth.Com Clec |
| (240)618- | Wireless | Verizon Wireless |
| (240)619- | Landline | Comcast Ip Phone |
| (240)620- | Landline | Mcimetro Access Transmission Services |
| (240)621- | Landline | Bandwidth.Com Clec |
| (240)622- | Landline | Core Communications |
| (240)623- | Landline | Bandwidth.Com Clec |
| (240)624- | Landline | Verizon Maryland |
| (240)625- | Wireless | Sprint Spectrum |
| (240)626- | Wireless | Sprint Spectrum |
| (240)627- | Landline | Global Crossing Local Services |
| (240)628- | Landline | Core Communications |
| (240)629- | Landline | Verizon Maryland |
| (240)630- | Landline | Bandwidth.Com Clec |
| (240)631- | Landline | Verizon Maryland |
| (240)632- | Landline | Verizon Maryland |
| (240)633- | Landline | Baltimore-Washington Telephone (Bwt) |
| (240)634- | Landline | Core Communications |
| (240)635- | Landline | Core Communications |
| (240)636- | Landline | Omnipoint Communications Cap Operations |
| (240)637- | Landline | Core Communications |
| (240)638- | Landline | Level 3 Communications |
| (240)639- | Landline | Core Communications |
| (240)640- | Wireless | New Cingular Wireless Pcs |
| (240)641- | Landline | Peerless Network Of Maryland |
| (240)642- | Landline | Advanced Telecom Solutions |
| (240)643- | Landline | Omnipoint Communications Cap Operations |
| (240)644- | Landline | Mcimetro Access Transmission Services |
| (240)645- | Landline | Mcimetro Access Transmission Services |
| (240)646- | Landline | Cavalier East |
| (240)647- | Landline | Core Communications |
| (240)648- | Landline | Core Communications |
| (240)649- | Landline | Core Communications |
| (240)650- | Landline | Onvoy |
| (240)651- | Wireless | Verizon Wireless |
| (240)652- | Landline | Mcimetro Access Transmission Services |
| (240)653- | Landline | Peerless Network Of Maryland |
| (240)654- | Wireless | New Cingular Wireless Pcs |
| (240)655- | Landline | Onvoy |
| (240)656- | Wireless | New Cingular Wireless Pcs |
| (240)657- | Landline | Mcimetro Access Transmission Services |
| (240)658- | Landline | Vonage America |
| (240)659- | Landline | Omnipoint Communications Cap Operations |
| (240)660- | Wireless | Verizon Wireless |
| (240)661- | Landline | Baltimore-Washington Telephone (Bwt) |
| (240)662- | Landline | Verizon Maryland |
| (240)663- | Landline | Omnipoint Communications Cap Operations |
| (240)664- | Landline | Peerless Network Of Maryland |
| (240)665- | Landline | Omnipoint Communications Cap Operations |
| (240)666- | Landline | Onvoy |
| (240)667- | Landline | Global Crossing Local Services |
| (240)668- | Landline | Starpower Communications |
| (240)669- | Landline | Comcast Ip Phone |
| (240)670- | Landline | Local Access |
| (240)671- | Wireless | Sprint Spectrum |
| (240)672- | Wireless | Verizon Wireless |
| (240)673- | Landline | Bandwidth.Com Clec |
| (240)674- | Wireless | Sprint Spectrum |
| (240)675- | Wireless | New Cingular Wireless Pcs |
| (240)676- | Wireless | Verizon Wireless |
| (240)677- | Landline | Mcimetro Access Transmission Services |
| (240)678- | Wireless | Verizon Wireless |
| (240)679- | Landline | Core Communications |
| (240)680- | Landline | Peerless Network Of Maryland |
| (240)681- | Landline | Atx Communications Services, Ltd. |
| (240)682- | Landline | Starpower Communications |
| (240)683- | Landline | Verizon Maryland |
| (240)684- | Landline | Verizon Maryland |
| (240)685- | Landline | Global Crossing Local Services |
| (240)686- | Landline | Verizon Maryland |
| (240)687- | Wireless | Verizon Wireless |
| (240)688- | Wireless | Verizon Wireless |
| (240)689- | Wireless | Csc Wireless |
| (240)690- | Landline | Teleport Communications America |
| (240)691- | Landline | Global Crossing Local Services |
| (240)692- | Landline | Level 3 Communications |
| (240)693- | Landline | Peerless Network Of Maryland |
| (240)694- | Landline | Verizon Maryland |
| (240)695- | Landline | Verizon Maryland |
| (240)696- | Landline | Level 3 Communications |
| (240)697- | Landline | Coretel Maryland |
| (240)698- | Landline | Omnipoint Communications Cap Operations |
| (240)699- | Landline | Verizon Maryland |
| (240)701- | Wireless | New Cingular Wireless Pcs |
| (240)702- | Wireless | Verizon Wireless |
| (240)703- | Landline | Omnipoint Communications Cap Operations |
| (240)704- | Wireless | New Cingular Wireless Pcs |
| (240)705- | Wireless | New Cingular Wireless Pcs |
| (240)706- | Wireless | New Cingular Wireless Pcs |
| (240)707- | Wireless | New Cingular Wireless Pcs |
| (240)708- | Landline | Level 3 Communications |
| (240)709- | Landline | Omnipoint Communications Cap Operations |
| (240)710- | Landline | Mcimetro Access Transmission Services |
| (240)712- | Wireless | Verizon Wireless |
| (240)713- | Landline | Peerless Network Of Maryland |
| (240)714- | Landline | Omnipoint Communications Cap Operations |
| (240)715- | Landline | Global Crossing Local Services |
| (240)716- | Landline | Omnipoint Communications Cap Operations |
| (240)717- | Landline | Onvoy Spectrum |
| (240)718- | Landline | Mcimetro Access Transmission Services |
| (240)719- | Wireless | Verizon Wireless |
| (240)720- | Landline | Global Crossing Local Services |
| (240)721- | Landline | Verizon Maryland |
| (240)722- | Landline | Global Crossing Local Services |
| (240)723- | Wireless | Verizon Wireless |
| (240)724- | Landline | Cavalier East |
| (240)725- | Landline | Verizon Maryland |
| (240)726- | Landline | Nuso |
| (240)727- | Wireless | New Cingular Wireless Pcs |
| (240)728- | Landline | Vonage America |
| (240)729- | Landline | Omnipoint Communications Cap Operations |
| (240)730- | Landline | Hd Carrier |
| (240)731- | Wireless | New Cingular Wireless Pcs |
| (240)732- | Wireless | New Cingular Wireless Pcs |
| (240)733- | Landline | Fractel |
| (240)734- | Landline | Bandwidth.Com Clec |
| (240)735- | Landline | Nuso |
| (240)736- | Wireless | New Cingular Wireless Pcs |
| (240)737- | Landline | Cavalier East |
| (240)738- | Wireless | Verizon Wireless |
| (240)739- | Landline | Ip Horizon |
| (240)740- | Landline | Atlantech Online |
| (240)741- | Landline | Airespring |
| (240)742- | Landline | Nuso |
| (240)743- | Landline | Local Access |
| (240)744- | Landline | Level 3 Communications |
| (240)745- | Landline | Mcimetro Access Transmission Services |
| (240)746- | Landline | At&T |
| (240)747- | Landline | Cavalier East |
| (240)748- | Landline | Teleport Communications America |
| (240)749- | Wireless | Verizon Wireless |
| (240)750- | Wireless | New Cingular Wireless Pcs |
| (240)751- | Landline | Level 3 Communications |
| (240)752- | Landline | Level 3 Communications |
| (240)753- | Landline | Level 3 Communications |
| (240)754- | Landline | Level 3 Communications |
| (240)755- | Landline | Comcast Ip Phone |
| (240)756- | Landline | Omnipoint Communications Cap Operations |
| (240)757- | Landline | Peerless Network Of Maryland |
| (240)758- | Wireless | New Cingular Wireless Pcs |
| (240)759- | Landline | Radiantiq |
| (240)760- | Wireless | Verizon Wireless |
| (240)761- | Wireless | New Cingular Wireless Pcs |
| (240)762- | Wireless | Verizon Wireless |
| (240)763- | Landline | Bandwidth.Com Clec |
| (240)764- | Landline | Mcimetro Access Transmission Services |
| (240)765- | Landline | Mcimetro Access Transmission Services |
| (240)766- | Landline | Mcimetro Access Transmission Services |
| (240)767- | Landline | Cavalier East |
| (240)768- | Landline | Onvoy Spectrum |
| (240)769- | Landline | Bandwidth.Com Clec |
| (240)770- | Landline | Comcast Ip Phone |
| (240)771- | Landline | Onvoy |
| (240)772- | Wireless | Verizon Wireless |
| (240)773- | Landline | Verizon Maryland |
| (240)774- | Landline | Bandwidth.Com Clec |
| (240)775- | Landline | Bandwidth.Com Clec |
| (240)776- | Landline | Level 3 Communications |
| (240)777- | Landline | Verizon Maryland |
| (240)778- | Landline | Mcimetro Access Transmission Services |
| (240)779- | Landline | Cavalier East |
| (240)780- | Landline | Level 3 Communications |
| (240)781- | Landline | Mcimetro Access Transmission Services |
| (240)782- | Landline | Global Crossing Local Services |
| (240)783- | Wireless | Mte Paging Network |
| (240)784- | Landline | Omnipoint Communications Cap Operations |
| (240)785- | Landline | Bandwidth.Com Clec |
| (240)786- | Landline | Level 3 Communications |
| (240)787- | Landline | Level 3 Communications |
| (240)788- | Landline | Level 3 Communications |
| (240)789- | Landline | Advanced Telecom Solutions |
| (240)790- | Landline | Level 3 Communications |
| (240)791- | Landline | Omnipoint Communications Cap Operations |
| (240)792- | Landline | Omnipoint Communications Cap Operations |
| (240)793- | Wireless | Sprint Spectrum |
| (240)794- | Landline | Level 3 Communications |
| (240)795- | Wireless | Verizon Wireless |
| (240)796- | Landline | Omnipoint Communications Cap Operations |
| (240)797- | Landline | Omnipoint Communications Cap Operations |
| (240)798- | Landline | Onvoy |
| (240)799- | Landline | Fractel |
| (240)800- | Landline | Core Communications |
| (240)801- | Wireless | Verizon Wireless |
| (240)802- | Landline | Nuso |
| (240)803- | Wireless | New Cingular Wireless Pcs |
| (240)804- | Landline | Xo Maryland |
| (240)805- | Wireless | Verizon Wireless |
| (240)806- | Landline | Peerless Network Of Maryland |
| (240)807- | Landline | United States Cel Md |
| (240)808- | Wireless | Verizon Wireless |
| (240)809- | Landline | Onvoy |
| (240)810- | Landline | Omnipoint Communications Cap Operations |
| (240)812- | Landline | Global Crossing Local Services |
| (240)813- | Landline | Atx Communications Services, Ltd. |
| (240)814- | Wireless | Verizon Wireless |
| (240)815- | Wireless | Verizon Wireless |
| (240)816- | Landline | Bandwidth.Com Clec |
| (240)817- | Landline | Omnipoint Communications Cap Operations |
| (240)818- | Landline | Verizon Maryland |
| (240)819- | Landline | Onvoy |
| (240)820- | Landline | Radiantiq |
| (240)821- | Landline | Lightwave Communications |
| (240)822- | Landline | Radiantiq |
| (240)823- | Landline | Mcimetro Access Transmission Services |
| (240)824- | Landline | Radiantiq |
| (240)825- | Wireless | Verizon Wireless |
| (240)826- | Landline | Verizon Maryland |
| (240)827- | Landline | Onvoy |
| (240)828- | Landline | Telnyx |
| (240)829- | Landline | Coretel Maryland |
| (240)830- | Landline | Comcast Ip Phone |
| (240)831- | Landline | Onvoy |
| (240)832- | Wireless | Sprint Spectrum |
| (240)833- | Landline | Mcimetro Access Transmission Services |
| (240)834- | Landline | Radiantiq |
| (240)835- | Landline | Onvoy Spectrum |
| (240)836- | Landline | Onvoy |
| (240)837- | Landline | Mcimetro Access Transmission Services |
| (240)838- | Landline | Omnipoint Communications Cap Operations |
| (240)839- | Wireless | Verizon Wireless |
| (240)840- | Landline | Onvoy Spectrum |
| (240)841- | Landline | Mcimetro Access Transmission Services |
| (240)842- | Landline | Mcimetro Access Transmission Services |
| (240)843- | Landline | Mcimetro Access Transmission Services |
| (240)844- | Landline | Xo Maryland |
| (240)845- | Landline | Mcimetro Access Transmission Services |
| (240)846- | Landline | Mcimetro Access Transmission Services |
| (240)847- | Landline | Onvoy |
| (240)848- | Wireless | Sprint Spectrum |
| (240)849- | Landline | Teleport Communications America |
| (240)850- | Landline | Peerless Network Of Maryland |
| (240)851- | Landline | Onvoy |
| (240)852- | Landline | Omnipoint Communications Cap Operations |
| (240)853- | Landline | Bandwidth.Com Clec |
| (240)854- | Landline | Omnipoint Communications Cap Operations |
| (240)855- | Wireless | Sprint Spectrum |
| (240)856- | Wireless | Verizon Wireless |
| (240)857- | Landline | Level 3 Telecom Of Maryland |
| (240)858- | Wireless | Verizon Wireless |
| (240)859- | Landline | Onvoy |
| (240)860- | Landline | Peerless Network Of Maryland |
| (240)861- | Landline | Omnipoint Communications Cap Operations |
| (240)862- | Landline | Onvoy |
| (240)863- | Landline | Level 3 Telecom Of Maryland |
| (240)864- | Landline | Cavalier East |
| (240)865- | Landline | Level 3 Communications |
| (240)866- | Landline | Terra Nova Telecom |
| (240)867- | Landline | Commio |
| (240)868- | Landline | Cavalier East |
| (240)869- | Landline | Omnipoint Communications Cap Operations |
| (240)870- | Landline | Onvoy |
| (240)871- | Landline | Omnipoint Communications Cap Operations |
| (240)872- | Landline | Omnipoint Communications Cap Operations |
| (240)873- | Landline | Onvoy |
| (240)874- | Landline | Onvoy |
| (240)875- | Landline | Onvoy |
| (240)876- | Wireless | Sprint Spectrum |
| (240)877- | Landline | Onvoy |
| (240)878- | Landline | Commio |
| (240)879- | Landline | Omnipoint Communications Cap Operations |
| (240)880- | Landline | Level 3 Communications |
| (240)881- | Landline | Bandwidth.Com Clec |
| (240)882- | Wireless | Sprint Spectrum |
| (240)883- | Landline | Level 3 Communications |
| (240)884- | Landline | Onvoy Spectrum |
| (240)885- | Landline | Onvoy |
| (240)886- | Landline | Omnipoint Communications Cap Operations |
| (240)887- | Landline | Omnipoint Communications Cap Operations |
| (240)888- | Wireless | New Cingular Wireless Pcs |
| (240)889- | Landline | Omnipoint Communications Cap Operations |
| (240)890- | Wireless | Verizon Wireless |
| (240)891- | Landline | Level 3 Communications |
| (240)892- | Landline | Level 3 Communications |
| (240)893- | Wireless | New Cingular Wireless Pcs |
| (240)894- | Wireless | Dish Wireless |
| (240)895- | Landline | Verizon Maryland |
| (240)896- | Wireless | Dish Wireless |
| (240)897- | Landline | Level 3 Communications |
| (240)898- | Landline | Level 3 Communications |
| (240)899- | Landline | Omnipoint Communications Cap Operations |
| (240)900- | Landline | Onvoy |
| (240)901- | Landline | Centurylink Communications |
| (240)902- | Landline | Twilio International |
| (240)903- | Landline | Comcast Ip Phone |
| (240)904- | Wireless | Verizon Wireless |
| (240)905- | Landline | Metropcs |
| (240)906- | Landline | Omnipoint Communications Cap Operations |
| (240)907- | Wireless | Verizon Wireless |
| (240)908- | Landline | Onvoy |
| (240)909- | Landline | Metropcs |
| (240)910- | Landline | Radiantiq |
| (240)912- | Landline | Us Lec Of Maryland |
| (240)913- | Landline | Onvoy |
| (240)914- | Wireless | Dish Wireless |
| (240)915- | Landline | Telnyx |
| (240)916- | Landline | Omnipoint Communications Cap Operations |
| (240)917- | Wireless | New Cingular Wireless Pcs |
| (240)918- | Landline | Omnipoint Communications Cap Operations |
| (240)919- | Landline | Omnipoint Communications Cap Operations |
| (240)920- | Landline | Level 3 Communications |
| (240)921- | Landline | Omnipoint Communications Cap Operations |
| (240)922- | Landline | Fractel |
| (240)923- | Landline | Omnipoint Communications Cap Operations |
| (240)924- | Landline | Bandwidth.Com Clec |
| (240)925- | Wireless | Verizon Wireless |
| (240)926- | Landline | Omnipoint Communications Cap Operations |
| (240)927- | Landline | Omnipoint Communications Cap Operations |
| (240)928- | Wireless | New Cingular Wireless Pcs |
| (240)929- | Landline | Cavalier East |
| (240)930- | Wireless | Verizon Wireless |
| (240)931- | Landline | Nuso |
| (240)932- | Landline | Bandwidth.Com Clec |
| (240)933- | Landline | Ton80 Communications |
| (240)934- | Landline | Ton80 Communications |
| (240)935- | Wireless | Verizon Wireless |
| (240)936- | Landline | Omnipoint Communications Cap Operations |
| (240)937- | Landline | Bandwidth.Com Clec |
| (240)938- | Landline | Omnipoint Communications Cap Operations |
| (240)939- | Landline | Bandwidth.Com Clec |
| (240)940- | Landline | Bandwidth.Com Clec |
| (240)941- | Landline | Bandwidth.Com Clec |
| (240)942- | Landline | Radiantiq |
| (240)943- | Landline | Comcast Ip Phone |
| (240)944- | Landline | Radiantiq |
| (240)945- | Landline | Onvoy |
| (240)946- | Landline | Fractel |
| (240)947- | Wireless | New Cingular Wireless Pcs |
| (240)948- | Landline | Bandwidth.Com Clec |
| (240)949- | Landline | Cavalier East |
| (240)951- | Landline | Teleport Communications America |
| (240)952- | Landline | Teleport Communications America |
| (240)953- | Landline | Teleport Communications America |
| (240)954- | Landline | Teleport Communications America |
| (240)955- | Landline | Bandwidth.Com Clec |
| (240)956- | Landline | Onvoy |
| (240)957- | Landline | Bandwidth.Com Clec |
| (240)960- | Landline | Omnipoint Communications Cap Operations |
| (240)961- | Wireless | Verizon Wireless |
| (240)962- | Wireless | Verizon Wireless |
| (240)963- | Landline | Bandwidth.Com Clec |
| (240)964- | Landline | Verizon Maryland |
| (240)965- | Landline | Paetec Communications |
| (240)966- | Landline | Ton80 Communications |
| (240)967- | Landline | Metropcs |
| (240)968- | Wireless | New Cingular Wireless Pcs |
| (240)969- | Landline | Commio |
| (240)970- | Landline | Onvoy |
| (240)971- | Landline | Centurylink Communications |
| (240)972- | Landline | Baltimore-Washington Telephone (Bwt) |
| (240)973- | Landline | Metropcs |
| (240)974- | Wireless | New Cingular Wireless Pcs |
| (240)975- | Wireless | Verizon Wireless |
| (240)977- | Landline | Onvoy |
| (240)978- | Landline | Omnipoint Communications Cap Operations |
| (240)979- | Landline | Level 3 Communications |
| (240)980- | Wireless | Verizon Wireless |
| (240)981- | Landline | Nuso |
| (240)982- | Landline | Onvoy |
| (240)983- | Landline | Nuso |
| (240)984- | Landline | Teleport Communications America |
| (240)985- | Landline | Centurylink Communications |
| (240)986- | Landline | Xo Maryland |
| (240)987- | Wireless | New Cingular Wireless Pcs |
| (240)988- | Wireless | Sprint Spectrum |
| (240)993- | Landline | Mcimetro Access Transmission Services |
| (240)994- | Wireless | Verizon Wireless |
| (240)995- | Landline | Onvoy |
| (240)996- | Landline | Centurylink Communications |
| (240)997- | Wireless | Verizon Wireless |
| (240)998- | Landline | Centurylink Communications |
| No prefixes match “”. | ||
Frequently Asked Questions about the 240 Area Code
Who called me from a 240 number?
A 240 number is assigned to Germantown, Maryland, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 240 code to look nearby, so a 240 number doesn't prove the caller is local. Recently, 1,261 unwanted-call complaints were reported to the FTC for numbers showing the 240 code (53% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 240 a scam area code?
No area code is a scam on its own. 240 is a normal, officially assigned code for Germantown, Maryland. Spam callers spoof local codes to raise the odds you answer, so 240 on your caller ID says nothing about who is really calling. Recently, 1,261 unwanted-call complaints were reported to the FTC for numbers showing the 240 code (53% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 240 area code?
Repeated calls from different 240 numbers are usually spoofing: a robocaller rotates through 240 numbers so each call looks local and slips past simple blocks. Recently, 1,261 unwanted-call complaints were reported to the FTC for numbers showing the 240 code (53% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 240 number?
If you aren't expecting a 240 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 240 area code?
Block a single 240 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 240 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 240?
Area code 240 covers Germantown and the surrounding area in Maryland, spanning 314 cities with about 2,956,782 residents. It shares its area with overlay codes 227, 301.
When did area code 240 go into service?
Area code 240 went into service on June 1, 1997. It was added as an overlay of 301, so 240 numbers serve the same area that 301 already covered.
Is 240 a real area code?
Yes. 240 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Germantown, Maryland. A real code can still show up on spoofed spam calls, so treat unknown 240 calls with normal caution.
What timezone is the 240 area code in?
The 240 area code is in the Eastern Time (ET). Because a number can be kept when someone moves or switches to VoIP, a specific 240 caller may not be in that zone.
How do I call a 240 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 240 and the seven-digit number. From a mobile phone you can usually just enter +1 240 followed by the number and let the phone add the exit code for you.