410 Area CodeBaltimore, MD
Area code 410 covers Baltimore and 207 other cities in Maryland: 3,212,271 people in 17 counties, led by Baltimore County and Baltimore city, on Eastern Time (ET). It overlays 443 and 667.
Overview
- Major City
- Baltimore
- State
- Maryland (MD)
- Timezone
- Eastern Time (ET)
- Current Time
- –:––
- Overlay
- Yes – shares area with 443, 667
Where is area code 410?
Overview of the 410 Area Code
Geographic Coverage of the 410 Area Code
All 208 cities- 568,271
- 99,615
- 67,639
- 65,834
- 63,597
- 55,197
Baltimore Area Codes Overview
- 410This page
- 443Same territory
- 667Same territory
What cities does area code 410 cover?
| City | State | Population | Population in 410 | % of listed-city population | % of City |
|---|---|---|---|---|---|
| Baltimore | MD | 568,271 | 568,271 | 23.0% | 100.0% |
| Columbia | MD | 99,615 | 88,218 | 4.0% | 88.6% |
| Glen Burnie | MD | 67,639 | 67,639 | 2.7% | 100.0% |
| Ellicott City | MD | 65,834 | 65,834 | 2.7% | 100.0% |
| Dundalk | MD | 63,597 | 63,597 | 2.6% | 100.0% |
| Towson | MD | 55,197 | 55,197 | 2.2% | 100.0% |
| Bel Air South | MD | 47,709 | 47,709 | 1.9% | 100.0% |
| Severn | MD | 44,231 | 44,231 | 1.8% | 100.0% |
| Catonsville | MD | 41,567 | 41,567 | 1.7% | 100.0% |
| Annapolis | MD | 40,689 | 40,689 | 1.7% | 100.0% |
| Essex | MD | 39,262 | 39,262 | 1.6% | 100.0% |
| Woodlawn | MD | 37,879 | 37,879 | 1.5% | 100.0% |
| Severna Park | MD | 37,634 | 37,634 | 1.5% | 100.0% |
| Odenton | MD | 37,132 | 37,132 | 1.5% | 100.0% |
| Salisbury | MD | 33,616 | 33,616 | 1.4% | 100.0% |
| Randallstown | MD | 32,430 | 32,430 | 1.3% | 100.0% |
| Pikesville | MD | 30,764 | 30,764 | 1.3% | 100.0% |
| Parkville | MD | 30,734 | 30,734 | 1.3% | 100.0% |
| Owings Mills | MD | 30,622 | 30,622 | 1.2% | 100.0% |
| Bel Air North | MD | 30,568 | 30,568 | 1.2% | 100.0% |
| Eldersburg | MD | 30,531 | 30,531 | 1.2% | 100.0% |
| Carney | MD | 29,941 | 29,941 | 1.2% | 100.0% |
| Milford Mill | MD | 29,042 | 29,042 | 1.2% | 100.0% |
| Perry Hall | MD | 28,474 | 28,474 | 1.2% | 100.0% |
| Crofton | MD | 27,348 | 27,348 | 1.1% | 100.0% |
| Reisterstown | MD | 25,968 | 25,968 | 1.1% | 100.0% |
| Edgewood | MD | 25,562 | 25,562 | 1.0% | 100.0% |
| Lochearn | MD | 25,333 | 25,333 | 1.0% | 100.0% |
| Middle River | MD | 25,191 | 25,191 | 1.0% | 100.0% |
| Pasadena | MD | 24,287 | 24,287 | 1.0% | 100.0% |
| Ilchester | MD | 23,476 | 23,476 | 1.0% | 100.0% |
| Arnold | MD | 23,106 | 19,787 | 0.9% | 85.6% |
| Cockeysville | MD | 20,776 | 20,776 | 0.9% | 100.0% |
| Westminster | MD | 20,662 | 20,662 | 0.8% | 100.0% |
| Arbutus | MD | 20,483 | 20,483 | 0.8% | 100.0% |
| Lake Shore | MD | 19,477 | 19,477 | 0.8% | 100.0% |
| Rosedale | MD | 19,257 | 19,257 | 0.8% | 100.0% |
| Aberdeen | MD | 18,451 | 18,451 | 0.8% | 100.0% |
| Easton | MD | 17,381 | 17,381 | 0.7% | 100.0% |
| Ferndale | MD | 16,746 | 16,746 | 0.7% | 100.0% |
| Elkton | MD | 15,977 | 15,977 | 0.7% | 100.0% |
| Parole | MD | 15,922 | 15,922 | 0.7% | 100.0% |
| Elkridge | MD | 15,593 | 15,593 | 0.6% | 100.0% |
| Havre de Grace | MD | 15,222 | 15,222 | 0.6% | 100.0% |
| Rossville | MD | 15,147 | 15,147 | 0.6% | 100.0% |
| Brooklyn Park | MD | 14,373 | 14,373 | 0.6% | 100.0% |
| Cambridge | MD | 13,262 | 13,262 | 0.5% | 100.0% |
| Riviera Beach | MD | 12,677 | 12,677 | 0.5% | 100.0% |
| Joppatowne | MD | 12,616 | 12,616 | 0.5% | 100.0% |
| Overlea | MD | 12,275 | 12,275 | 0.5% | 100.0% |
| Ocean Pines | MD | 11,710 | 11,710 | 0.5% | 100.0% |
| Mays Chapel | MD | 11,420 | 11,420 | 0.5% | 100.0% |
| Annapolis Neck | MD | 10,950 | 10,950 | 0.5% | 100.0% |
| Chesapeake Ranch Estates | MD | 10,519 | 10,519 | 0.4% | 100.0% |
| Bel Air | MD | 10,395 | 10,395 | 0.4% | 100.0% |
| Linthicum | MD | 10,324 | 10,324 | 0.4% | 100.0% |
| Timonium | MD | 9,925 | 9,925 | 0.4% | 100.0% |
| White Marsh | MD | 9,513 | 9,513 | 0.4% | 100.0% |
| Fort Meade | MD | 9,327 | 9,327 | 0.4% | 100.0% |
| Edgewater | MD | 9,023 | 9,023 | 0.4% | 100.0% |
| Fallston | MD | 8,958 | 8,958 | 0.4% | 100.0% |
| Garrison | MD | 8,823 | 8,823 | 0.4% | 100.0% |
| Cape St. Claire | MD | 8,747 | 8,747 | 0.4% | 100.0% |
| Edgemere | MD | 8,669 | 8,669 | 0.4% | 100.0% |
| Lansdowne | MD | 8,409 | 8,409 | 0.3% | 100.0% |
| Mayo | MD | 8,298 | 8,298 | 0.3% | 100.0% |
| Taneytown | MD | 8,293 | 8,293 | 0.3% | 100.0% |
| Jessup | MD | 7,137 | 7,137 | 0.3% | 100.0% |
| Baltimore Highlands | MD | 7,019 | 7,019 | 0.3% | 100.0% |
| Ocean City | MD | 6,884 | 1,836 | 0.3% | 26.7% |
| Stevensville | MD | 6,803 | 6,803 | 0.3% | 100.0% |
| Bowleys Quarters | MD | 6,755 | 6,755 | 0.3% | 100.0% |
| Lutherville | MD | 6,504 | 6,504 | 0.3% | 100.0% |
| Chesapeake Beach | MD | 6,504 | 6,504 | 0.3% | 100.0% |
| Riverside | MD | 6,425 | 6,425 | 0.3% | 100.0% |
| Hampstead | MD | 6,288 | 6,288 | 0.3% | 100.0% |
| Fruitland | MD | 5,973 | 5,973 | 0.3% | 100.0% |
| Shady Side | MD | 5,803 | 5,803 | 0.2% | 100.0% |
| Chestertown | MD | 5,702 | 5,702 | 0.2% | 100.0% |
| Manchester | MD | 5,440 | 5,440 | 0.2% | 100.0% |
| Berlin | MD | 5,349 | 5,349 | 0.2% | 100.0% |
| Hampton | MD | 5,052 | 5,052 | 0.2% | 100.0% |
| Denton | MD | 5,049 | 5,049 | 0.2% | 100.0% |
| Deale | MD | 4,945 | 4,945 | 0.2% | 100.0% |
| Naval Academy | MD | 4,802 | 4,802 | 0.2% | 100.0% |
| Centreville | MD | 4,771 | 4,771 | 0.2% | 100.0% |
| Delmar | MD | 4,748 | 4,748 | 0.2% | 100.0% |
| Sykesville | MD | 4,622 | 4,622 | 0.2% | 100.0% |
| Perryville | MD | 4,510 | 4,510 | 0.2% | 100.0% |
| Pocomoke City | MD | 4,426 | 4,426 | 0.2% | 100.0% |
| West Ocean City | MD | 4,375 | 4,375 | 0.2% | 100.0% |
| Kingsville | MD | 4,318 | 4,318 | 0.2% | 100.0% |
| North East | MD | 4,191 | 4,191 | 0.2% | 100.0% |
| Chester | MD | 4,167 | 0 | 0.2% | 0.0% |
| Riva | MD | 4,076 | 4,076 | 0.2% | 100.0% |
| Princess Anne | MD | 3,667 | 3,667 | 0.2% | 100.0% |
| Grasonville | MD | 3,425 | 3,425 | 0.1% | 100.0% |
| Pleasant Hills | MD | 3,379 | 3,379 | 0.1% | 100.0% |
| Huntingtown | MD | 3,311 | 3,311 | 0.1% | 100.0% |
| Jarrettsville | MD | 2,916 | 2,916 | 0.1% | 100.0% |
| Federalsburg | MD | 2,871 | 2,871 | 0.1% | 100.0% |
| Gambrills | MD | 2,800 | 2,800 | 0.1% | 100.0% |
| Rising Sun | MD | 2,777 | 2,777 | 0.1% | 100.0% |
| Drum Point | MD | 2,731 | 2,731 | 0.1% | 100.0% |
| Herald Harbor | MD | 2,603 | 2,603 | 0.1% | 100.0% |
| Prince Frederick | MD | 2,538 | 2,538 | 0.1% | 100.0% |
| Crisfield | MD | 2,531 | 2,531 | 0.1% | 100.0% |
| Solomons | MD | 2,368 | 2,368 | 0.1% | 100.0% |
| Perryman | MD | 2,342 | 2,342 | 0.1% | 100.0% |
| Snow Hill | MD | 2,243 | 2,243 | 0.1% | 100.0% |
| North Beach | MD | 2,178 | 2,178 | 0.1% | 100.0% |
| Owings | MD | 2,149 | 2,149 | 0.1% | 100.0% |
| Aberdeen Proving Ground | MD | 2,093 | 2,093 | 0.1% | 100.0% |
| Hurlock | MD | 2,093 | 2,093 | 0.1% | 100.0% |
| Greensboro | MD | 1,969 | 1,969 | 0.1% | 100.0% |
| Arden on the Severn | MD | 1,953 | 1,953 | 0.1% | 100.0% |
| Lusby | MD | 1,835 | 1,835 | 0.1% | 100.0% |
| Long Beach | MD | 1,821 | 1,821 | 0.1% | 100.0% |
| New Windsor | MD | 1,758 | 1,758 | 0.1% | 100.0% |
| Crownsville | MD | 1,757 | 1,757 | 0.1% | 100.0% |
| Kingstown | MD | 1,733 | 1,733 | 0.1% | 100.0% |
| Pittsville | MD | 1,660 | 1,660 | 0.1% | 100.0% |
| Ridgely | MD | 1,646 | 1,646 | 0.1% | 100.0% |
| Charlestown | MD | 1,538 | 1,538 | 0.1% | 100.0% |
| Trappe | MD | 1,472 | 1,472 | 0.1% | 100.0% |
| Algonquin | MD | 1,241 | 1,241 | 0.1% | 100.0% |
| Rock Hall | MD | 1,200 | 1,200 | 0.1% | 100.0% |
| Hebron | MD | 1,114 | 1,114 | 0.1% | 100.0% |
| St. Michaels | MD | 1,073 | 1,073 | 0.1% | 100.0% |
| Willards | MD | 1,005 | 1,005 | 0.0% | 100.0% |
| Union Bridge | MD | 946 | 946 | 0.0% | 100.0% |
| Church Hill | MD | 831 | 831 | 0.0% | 100.0% |
| Eden | MD | 823 | 823 | 0.0% | 100.0% |
| Calvert Beach | MD | 808 | 808 | 0.0% | 100.0% |
| Tilghman Island | MD | 784 | 784 | 0.0% | 100.0% |
| Mount Vernon | MD | 779 | 779 | 0.0% | 100.0% |
| Chesapeake City | MD | 745 | 745 | 0.0% | 100.0% |
| St. Leonard | MD | 742 | 742 | 0.0% | 100.0% |
| Queenstown | MD | 737 | 737 | 0.0% | 100.0% |
| Sharptown | MD | 711 | 711 | 0.0% | 100.0% |
| Pylesville | MD | 693 | 693 | 0.0% | 100.0% |
| Cecilton | MD | 688 | 688 | 0.0% | 100.0% |
| Preston | MD | 688 | 688 | 0.0% | 100.0% |
| Galesville | MD | 684 | 684 | 0.0% | 100.0% |
| Port Deposit | MD | 625 | 625 | 0.0% | 100.0% |
| Oxford | MD | 601 | 601 | 0.0% | 100.0% |
| Kent Narrows | MD | 567 | 567 | 0.0% | 100.0% |
| Cordova | MD | 562 | 562 | 0.0% | 100.0% |
| Millington | MD | 541 | 541 | 0.0% | 100.0% |
| Galena | MD | 538 | 538 | 0.0% | 100.0% |
| Bishopville | MD | 531 | 531 | 0.0% | 100.0% |
| Sudlersville | MD | 516 | 516 | 0.0% | 100.0% |
| Butlertown | MD | 505 | 505 | 0.0% | 100.0% |
| Fairlee | MD | 490 | 490 | 0.0% | 100.0% |
| Deal Island | MD | 471 | 471 | 0.0% | 100.0% |
| Secretary | MD | 469 | 469 | 0.0% | 100.0% |
| Fairmount | MD | 457 | 457 | 0.0% | 100.0% |
| West Pocomoke | MD | 454 | 454 | 0.0% | 100.0% |
| Friendship | MD | 447 | 447 | 0.0% | 100.0% |
| Darlington | MD | 409 | 409 | 0.0% | 100.0% |
| East New Market | MD | 407 | 407 | 0.0% | 100.0% |
| Broomes Island | MD | 405 | 0 | 0.0% | 0.0% |
| Mardela Springs | MD | 354 | 354 | 0.0% | 100.0% |
| Chance | MD | 353 | 353 | 0.0% | 100.0% |
| Parsonsburg | MD | 339 | 339 | 0.0% | 100.0% |
| Newark | MD | 336 | 336 | 0.0% | 100.0% |
| Tolchester | MD | 329 | 329 | 0.0% | 100.0% |
| Betterton | MD | 283 | 283 | 0.0% | 100.0% |
| Smith Island | MD | 276 | 276 | 0.0% | 100.0% |
| Vienna | MD | 275 | 275 | 0.0% | 100.0% |
| Worton | MD | 249 | 249 | 0.0% | 100.0% |
| Tyaskin | MD | 236 | 236 | 0.0% | 100.0% |
| Nanticoke | MD | 225 | 225 | 0.0% | 100.0% |
| Goldsboro | MD | 216 | 216 | 0.0% | 100.0% |
| Allen | MD | 210 | 210 | 0.0% | 100.0% |
| Madison | MD | 204 | 204 | 0.0% | 100.0% |
| Bivalve | MD | 201 | 201 | 0.0% | 100.0% |
| Kennedyville | MD | 199 | 199 | 0.0% | 100.0% |
| Queen Anne | MD | 192 | 192 | 0.0% | 100.0% |
| Powellville | MD | 189 | 189 | 0.0% | 100.0% |
| Jesterville | MD | 188 | 188 | 0.0% | 100.0% |
| Barclay | MD | 181 | 181 | 0.0% | 100.0% |
| Marydel | MD | 178 | 178 | 0.0% | 100.0% |
| Taylors Island | MD | 173 | 173 | 0.0% | 100.0% |
| Edesville | MD | 169 | 169 | 0.0% | 100.0% |
| Dames Quarter | MD | 167 | 167 | 0.0% | 100.0% |
| Fishing Creek | MD | 163 | 163 | 0.0% | 100.0% |
| Henderson | MD | 161 | 161 | 0.0% | 100.0% |
| Williston | MD | 155 | 155 | 0.0% | 100.0% |
| Whaleyville | MD | 149 | 149 | 0.0% | 100.0% |
| Girdletree | MD | 149 | 149 | 0.0% | 100.0% |
| Georgetown | MD | 143 | 143 | 0.0% | 100.0% |
| Hillsboro | MD | 135 | 135 | 0.0% | 100.0% |
| Quantico | MD | 133 | 133 | 0.0% | 100.0% |
| Choptank | MD | 129 | 129 | 0.0% | 100.0% |
| Galestown | MD | 115 | 115 | 0.0% | 100.0% |
| Templeville | MD | 114 | 114 | 0.0% | 100.0% |
| Highland Beach | MD | 107 | 107 | 0.0% | 100.0% |
| Church Creek | MD | 105 | 105 | 0.0% | 100.0% |
| Nanticoke Acres | MD | 103 | 103 | 0.0% | 100.0% |
| Frenchtown-Rumbly | MD | 100 | 100 | 0.0% | 100.0% |
| Stockton | MD | 92 | 92 | 0.0% | 100.0% |
| Elliott | MD | 52 | 52 | 0.0% | 100.0% |
| West Denton | MD | 52 | 52 | 0.0% | 100.0% |
| Eldorado | MD | 46 | 46 | 0.0% | 100.0% |
| Brookview | MD | 46 | 46 | 0.0% | 100.0% |
| Whitehaven | MD | 43 | 43 | 0.0% | 100.0% |
| Waterview | MD | 40 | 40 | 0.0% | 100.0% |
City population is shown in full; each city's share inside 410 is measured from Census tract centroids.
What counties does area code 410 cover?
| County | State | Population in 410 | % of area-code footprint | % of County |
|---|---|---|---|---|
| Baltimore County | MD | 854,535 | 27% | 100% |
| Baltimore city | MD | 585,708 | 18% | 100% |
| Anne Arundel County | MD | 565,600 | 18% | 96% |
| Harford County | MD | 260,924 | 8% | 100% |
| Howard County | MD | 242,403 | 8% | 73% |
| Carroll County | MD | 162,109 | 5% | 94% |
| Cecil County | MD | 103,725 | 3% | 100% |
| Wicomico County | MD | 103,588 | 3% | 100% |
| Calvert County | MD | 92,783 | 3% | 100% |
| Worcester County | MD | 47,387 | 1% | 90% |
| Queen Anne's County | MD | 45,164 | 1% | 91% |
| Talbot County | MD | 35,680 | 1% | 95% |
| Caroline County | MD | 33,293 | 1% | 100% |
| Dorchester County | MD | 32,531 | 1% | 100% |
| Somerset County | MD | 24,620 | 1% | 100% |
| Kent County | MD | 19,198 | 1% | 100% |
| Frederick County | MD | 3,023 | 0% | 1% |
Sources:
- Census PEP Vintage 2024 (city populations)
- · 2020 Census tract centroids with NANP and TIGERweb boundaries (footprint, counties, city shares)
- · NANPA NPA and CO Code reports (dates, prefixes)
- · Methodology
Has area code 410 been reported for unwanted calls?
Yes – 2,283 FTC complaints, May 29 – Oct 1, 2026.
- 68% robocalls
- ↓ 4% vs prior period
- FTC data, retrieved 2026-10-05
Most-reported subjects
- Other43%981
- Dropped call or no message25%576
- Calls pretending to be government, businesses, or family and friends7%168
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.
Which prefixes and exchanges belong to area code 410?
78% assigned to a telco
- 80% Landline
- 20% Wireless
- 0% Unknown
of 782 | ||
| Prefix | Usage | Carrier |
|---|---|---|
| (410)200- | Landline | Mcimetro Access Transmission Services |
| (410)202- | Wireless | Verizon Wireless |
| (410)203- | Landline | Verizon Maryland |
| (410)204- | Landline | Verizon Maryland |
| (410)205- | Wireless | New Cingular Wireless Pcs |
| (410)206- | Wireless | New Cingular Wireless Pcs |
| (410)207- | Wireless | Verizon Wireless |
| (410)208- | Landline | Verizon Maryland |
| (410)209- | Landline | Verizon Maryland |
| (410)210- | Wireless | Verizon Wireless |
| (410)212- | Wireless | Sprint Spectrum |
| (410)213- | Landline | Verizon Maryland |
| (410)214- | Landline | Core Communications |
| (410)215- | Wireless | Verizon Wireless |
| (410)216- | Landline | Verizon Maryland |
| (410)217- | Landline | Verizon Maryland |
| (410)218- | Wireless | Verizon Wireless |
| (410)219- | Landline | Verizon Maryland |
| (410)220- | Wireless | Sprint Spectrum |
| (410)221- | Landline | Verizon Maryland |
| (410)222- | Landline | Verizon Maryland |
| (410)223- | Landline | Verizon Maryland |
| (410)224- | Landline | Verizon Maryland |
| (410)225- | Landline | Verizon Maryland |
| (410)226- | Landline | Verizon Maryland |
| (410)227- | Wireless | New Cingular Wireless Pcs |
| (410)228- | Landline | Verizon Maryland |
| (410)229- | Landline | Verizon Maryland |
| (410)230- | Landline | Verizon Maryland |
| (410)231- | Wireless | New Cingular Wireless Pcs |
| (410)232- | Wireless | Usa Mobility Wireless |
| (410)233- | Landline | Verizon Maryland |
| (410)234- | Landline | Verizon Maryland |
| (410)235- | Landline | Verizon Maryland |
| (410)236- | Wireless | New Cingular Wireless Pcs |
| (410)237- | Landline | Verizon Maryland |
| (410)238- | Landline | Verizon Maryland |
| (410)239- | Landline | Verizon Maryland |
| (410)240- | Wireless | Sprint Spectrum |
| (410)241- | Wireless | Verizon Wireless |
| (410)242- | Landline | Verizon Maryland |
| (410)243- | Landline | Verizon Maryland |
| (410)244- | Landline | Verizon Maryland |
| (410)245- | Wireless | New Cingular Wireless Pcs |
| (410)246- | Landline | Mcimetro Access Transmission Services |
| (410)247- | Landline | Verizon Maryland |
| (410)248- | Landline | Verizon Maryland |
| (410)249- | Landline | Verizon Maryland |
| (410)250- | Landline | Verizon Maryland |
| (410)251- | Wireless | Verizon Wireless |
| (410)252- | Landline | Verizon Maryland |
| (410)253- | Wireless | New Cingular Wireless Pcs |
| (410)254- | Landline | Verizon Maryland |
| (410)255- | Landline | Verizon Maryland |
| (410)256- | Landline | Verizon Maryland |
| (410)257- | Landline | Verizon Maryland |
| (410)258- | Wireless | Sprint Spectrum |
| (410)259- | Wireless | Verizon Wireless |
| (410)260- | Landline | Verizon Maryland |
| (410)261- | Landline | Verizon Maryland |
| (410)262- | Wireless | Sprint Spectrum |
| (410)263- | Landline | Verizon Maryland |
| (410)264- | Landline | Verizon Maryland |
| (410)265- | Landline | Verizon Maryland |
| (410)266- | Landline | Verizon Maryland |
| (410)267- | Landline | Verizon Maryland |
| (410)268- | Landline | Verizon Maryland |
| (410)269- | Landline | Verizon Maryland |
| (410)270- | Landline | Redi-Call Communications Co. |
| (410)271- | Wireless | Verizon Wireless |
| (410)272- | Landline | Verizon Maryland |
| (410)273- | Landline | Verizon Maryland |
| (410)274- | Wireless | Verizon Wireless |
| (410)275- | Landline | Verizon Maryland |
| (410)276- | Landline | Verizon Maryland |
| (410)277- | Landline | Verizon Maryland |
| (410)278- | Landline | Verizon Maryland |
| (410)279- | Wireless | Verizon Wireless |
| (410)280- | Landline | Verizon Maryland |
| (410)281- | Landline | Verizon Maryland |
| (410)282- | Landline | Verizon Maryland |
| (410)283- | Wireless | Usa Mobility Wireless |
| (410)284- | Landline | Verizon Maryland |
| (410)285- | Landline | Verizon Maryland |
| (410)286- | Landline | Verizon Maryland |
| (410)287- | Landline | Verizon Maryland |
| (410)288- | Landline | Verizon Maryland |
| (410)289- | Landline | Verizon Maryland |
| (410)290- | Landline | Verizon Maryland |
| (410)291- | Landline | Verizon Maryland |
| (410)292- | Wireless | New Cingular Wireless Pcs |
| (410)293- | Landline | Paetec Communications |
| (410)294- | Wireless | New Cingular Wireless Pcs |
| (410)295- | Landline | Verizon Maryland |
| (410)296- | Landline | Verizon Maryland |
| (410)297- | Landline | Verizon Maryland |
| (410)298- | Landline | Verizon Maryland |
| (410)299- | Wireless | Verizon Wireless |
| (410)300- | Wireless | Sprint Spectrum |
| (410)301- | Wireless | Sprint Spectrum |
| (410)302- | Wireless | New Cingular Wireless Pcs |
| (410)303- | Wireless | Verizon Wireless |
| (410)304- | Landline | Idt America |
| (410)305- | Landline | Verizon Maryland |
| (410)306- | Landline | Verizon Maryland |
| (410)307- | Landline | Verizon Maryland |
| (410)308- | Landline | Verizon Maryland |
| (410)309- | Landline | Verizon Maryland |
| (410)310- | Wireless | Verizon Wireless |
| (410)312- | Landline | Verizon Maryland |
| (410)313- | Landline | Verizon Maryland |
| (410)314- | Landline | Mcimetro Access Transmission Services |
| (410)315- | Landline | Verizon Maryland |
| (410)316- | Landline | Verizon Maryland |
| (410)317- | Landline | Mcimetro Access Transmission Services |
| (410)318- | Landline | Verizon Maryland |
| (410)319- | Landline | Verizon Maryland |
| (410)320- | Wireless | Sprint Spectrum |
| (410)321- | Landline | Verizon Maryland |
| (410)322- | Wireless | New Cingular Wireless Pcs |
| (410)323- | Landline | Verizon Maryland |
| (410)324- | Landline | Verizon Maryland |
| (410)325- | Landline | Verizon Maryland |
| (410)326- | Landline | Verizon Maryland |
| (410)327- | Landline | Verizon Maryland |
| (410)328- | Landline | Verizon Maryland |
| (410)329- | Landline | Verizon Maryland |
| (410)330- | Wireless | New Cingular Wireless Pcs |
| (410)331- | Wireless | Usa Mobility Wireless |
| (410)332- | Landline | Verizon Maryland |
| (410)333- | Landline | Verizon Maryland |
| (410)334- | Landline | Verizon Maryland |
| (410)335- | Landline | Verizon Maryland |
| (410)336- | Wireless | New Cingular Wireless Pcs |
| (410)337- | Landline | Verizon Maryland |
| (410)338- | Landline | Verizon Maryland |
| (410)339- | Landline | Verizon Maryland |
| (410)340- | Wireless | New Cingular Wireless Pcs |
| (410)341- | Landline | Verizon Maryland |
| (410)342- | Landline | Verizon Maryland |
| (410)343- | Landline | Verizon Maryland |
| (410)344- | Landline | Verizon Maryland |
| (410)345- | Landline | Verizon Maryland |
| (410)346- | Landline | Verizon Maryland |
| (410)347- | Landline | Verizon Maryland |
| (410)348- | Landline | Verizon Maryland |
| (410)349- | Landline | Verizon Maryland |
| (410)350- | Landline | Verizon Maryland |
| (410)351- | Wireless | Usa Mobility Wireless |
| (410)352- | Landline | Verizon Maryland |
| (410)353- | Wireless | Verizon Wireless |
| (410)354- | Landline | Verizon Maryland |
| (410)355- | Landline | Verizon Maryland |
| (410)356- | Landline | Verizon Maryland |
| (410)357- | Landline | Verizon Maryland |
| (410)358- | Landline | Verizon Maryland |
| (410)359- | Landline | Verizon Maryland |
| (410)360- | Landline | Verizon Maryland |
| (410)361- | Landline | Verizon Maryland |
| (410)362- | Landline | Verizon Maryland |
| (410)363- | Landline | Verizon Maryland |
| (410)364- | Landline | Verizon Maryland |
| (410)365- | Wireless | Sprint Spectrum |
| (410)366- | Landline | Verizon Maryland |
| (410)367- | Landline | Verizon Maryland |
| (410)368- | Landline | Verizon Maryland |
| (410)369- | Landline | Level 3 Telecom Of Maryland |
| (410)370- | Wireless | New Cingular Wireless Pcs |
| (410)371- | Wireless | Verizon Wireless |
| (410)372- | Landline | Verizon Maryland |
| (410)373- | Wireless | Usa Mobility Wireless |
| (410)374- | Landline | Verizon Maryland |
| (410)375- | Wireless | Verizon Wireless |
| (410)376- | Landline | Verizon Maryland |
| (410)377- | Landline | Verizon Maryland |
| (410)378- | Landline | Verizon Maryland |
| (410)379- | Landline | Verizon Maryland |
| (410)380- | Landline | Redi-Call Communications Co. |
| (410)381- | Landline | Verizon Maryland |
| (410)382- | Wireless | Verizon Wireless |
| (410)383- | Landline | Verizon Maryland |
| (410)384- | Landline | Verizon Maryland |
| (410)385- | Landline | Verizon Maryland |
| (410)386- | Landline | Verizon Maryland |
| (410)387- | Landline | Broadview Networks |
| (410)388- | Landline | Verizon Maryland |
| (410)389- | Wireless | Usa Mobility Wireless |
| (410)390- | Landline | Teleport Communications America |
| (410)391- | Landline | Verizon Maryland |
| (410)392- | Landline | Verizon Maryland |
| (410)393- | Landline | Verizon Maryland |
| (410)394- | Landline | Verizon Maryland |
| (410)395- | Landline | Verizon Maryland |
| (410)396- | Landline | Verizon Maryland |
| (410)397- | Landline | Verizon Maryland |
| (410)398- | Landline | Verizon Maryland |
| (410)399- | Landline | Verizon Maryland |
| (410)400- | Landline | Cavalier Telephone Mid-Atlantic |
| (410)401- | Landline | Mcimetro Access Transmission Services |
| (410)402- | Landline | Mcimetro Access Transmission Services |
| (410)403- | Landline | Mcimetro Access Transmission Services |
| (410)404- | Wireless | Verizon Wireless |
| (410)405- | Landline | Verizon Maryland |
| (410)406- | Landline | Mcimetro Access Transmission Services |
| (410)407- | Landline | Verizon Maryland |
| (410)408- | Wireless | Usa Mobility Wireless |
| (410)409- | Wireless | Verizon Wireless |
| (410)412- | Landline | Mcimetro Access Transmission Services |
| (410)413- | Landline | Mcimetro Access Transmission Services |
| (410)414- | Landline | Verizon Maryland |
| (410)415- | Landline | Verizon Maryland |
| (410)416- | Landline | American Messaging Services |
| (410)417- | Landline | Verizon Maryland |
| (410)418- | Landline | Verizon Maryland |
| (410)419- | Wireless | Sprint Spectrum |
| (410)420- | Landline | Verizon Maryland |
| (410)421- | Landline | Verizon Maryland |
| (410)422- | Wireless | New Cingular Wireless Pcs |
| (410)423- | Landline | Teleport Communications America |
| (410)424- | Landline | Verizon Maryland |
| (410)425- | Landline | Verizon Maryland |
| (410)426- | Landline | Verizon Maryland |
| (410)427- | Landline | Teleport Communications America |
| (410)428- | Wireless | New Cingular Wireless Pcs |
| (410)429- | Landline | Verizon Maryland |
| (410)430- | Wireless | Verizon Wireless |
| (410)431- | Landline | Verizon Maryland |
| (410)432- | Landline | Verizon Maryland |
| (410)433- | Landline | Verizon Maryland |
| (410)434- | Wireless | Usa Mobility Wireless |
| (410)435- | Landline | Verizon Maryland |
| (410)436- | Landline | Verizon Maryland |
| (410)437- | Landline | Verizon Maryland |
| (410)438- | Landline | Verizon Maryland |
| (410)439- | Landline | Verizon Maryland |
| (410)440- | Wireless | New Cingular Wireless Pcs |
| (410)441- | Wireless | New Cingular Wireless Pcs |
| (410)442- | Landline | Verizon Maryland |
| (410)443- | Landline | Level 3 Communications |
| (410)444- | Landline | Verizon Maryland |
| (410)445- | Wireless | Usa Mobility Wireless |
| (410)446- | Wireless | New Cingular Wireless Pcs |
| (410)447- | Wireless | Usa Mobility Wireless |
| (410)448- | Landline | Verizon Maryland |
| (410)449- | Landline | Bandwidth.Com Clec |
| (410)450- | Landline | Verizon Maryland |
| (410)451- | Landline | Verizon Maryland |
| (410)452- | Landline | Verizon Maryland |
| (410)453- | Landline | Verizon Maryland |
| (410)454- | Landline | Mcimetro Access Transmission Services |
| (410)455- | Landline | Verizon Maryland |
| (410)456- | Wireless | Verizon Wireless |
| (410)457- | Landline | Verizon Maryland |
| (410)458- | Wireless | Verizon Wireless |
| (410)459- | Wireless | Verizon Wireless |
| (410)460- | Wireless | Usa Mobility Wireless |
| (410)461- | Landline | Verizon Maryland |
| (410)462- | Landline | Verizon Maryland |
| (410)463- | Wireless | Verizon Wireless |
| (410)464- | Landline | Verizon Maryland |
| (410)465- | Landline | Verizon Maryland |
| (410)466- | Landline | Verizon Maryland |
| (410)467- | Landline | Verizon Maryland |
| (410)468- | Landline | Verizon Maryland |
| (410)469- | Landline | Verizon Maryland |
| (410)470- | Landline | Verizon Maryland |
| (410)471- | Landline | Verizon Maryland |
| (410)472- | Landline | Verizon Maryland |
| (410)473- | Wireless | Usa Mobility Wireless |
| (410)474- | Wireless | Verizon Wireless |
| (410)475- | Wireless | Usa Mobility Wireless |
| (410)476- | Landline | Verizon Maryland |
| (410)477- | Landline | Verizon Maryland |
| (410)478- | Wireless | Usa Mobility Wireless |
| (410)479- | Landline | Verizon Maryland |
| (410)480- | Landline | Verizon Maryland |
| (410)482- | Landline | Verizon Maryland |
| (410)483- | Landline | Verizon Maryland |
| (410)484- | Landline | Verizon Maryland |
| (410)485- | Landline | Verizon Maryland |
| (410)486- | Landline | Verizon Maryland |
| (410)487- | Landline | Mcimetro Access Transmission Services |
| (410)488- | Landline | Verizon Maryland |
| (410)489- | Landline | Verizon Maryland |
| (410)490- | Wireless | Verizon Wireless |
| (410)491- | Wireless | New Cingular Wireless Pcs |
| (410)492- | Wireless | Usa Mobility Wireless |
| (410)493- | Wireless | Sprint Spectrum |
| (410)494- | Landline | Verizon Maryland |
| (410)495- | Landline | Verizon Maryland |
| (410)496- | Landline | Verizon Maryland |
| (410)497- | Landline | Comcast Ip Phone |
| (410)498- | Landline | Cavalier Telephone Mid-Atlantic |
| (410)499- | Wireless | Sprint Spectrum |
| (410)500- | Wireless | Sprint Spectrum |
| (410)501- | Landline | Lightwave Communications |
| (410)502- | Landline | Verizon Maryland |
| (410)503- | Landline | Verizon Maryland |
| (410)504- | Landline | Verizon Maryland |
| (410)505- | Landline | Verizon Maryland |
| (410)506- | Landline | Verizon Maryland |
| (410)507- | Wireless | Verizon Wireless |
| (410)508- | Landline | Verizon Maryland |
| (410)509- | Landline | Baltimore-Washington Telephone (Bwt) |
| (410)510- | Landline | Teleport Communications America |
| (410)512- | Landline | Verizon Maryland |
| (410)513- | Landline | Teleport Communications America |
| (410)514- | Landline | Verizon Maryland |
| (410)515- | Landline | Verizon Maryland |
| (410)516- | Landline | Verizon Maryland |
| (410)517- | Landline | Verizon Maryland |
| (410)518- | Landline | Verizon Maryland |
| (410)519- | Landline | Verizon Maryland |
| (410)520- | Landline | Verizon Maryland |
| (410)521- | Landline | Verizon Maryland |
| (410)522- | Landline | Verizon Maryland |
| (410)523- | Landline | Verizon Maryland |
| (410)524- | Landline | Verizon Maryland |
| (410)525- | Landline | Verizon Maryland |
| (410)526- | Landline | Verizon Maryland |
| (410)527- | Landline | Verizon Maryland |
| (410)528- | Landline | Verizon Maryland |
| (410)529- | Landline | Verizon Maryland |
| (410)530- | Wireless | New Cingular Wireless Pcs |
| (410)531- | Landline | Verizon Maryland |
| (410)532- | Landline | Verizon Maryland |
| (410)533- | Wireless | New Cingular Wireless Pcs |
| (410)534- | Landline | Verizon Maryland |
| (410)535- | Landline | Verizon Maryland |
| (410)536- | Landline | Verizon Maryland |
| (410)537- | Landline | Verizon Maryland |
| (410)538- | Landline | Verizon Maryland |
| (410)539- | Landline | Verizon Maryland |
| (410)540- | Landline | Verizon Maryland |
| (410)541- | Landline | Verizon Maryland |
| (410)542- | Landline | Verizon Maryland |
| (410)543- | Landline | Verizon Maryland |
| (410)544- | Landline | Verizon Maryland |
| (410)545- | Landline | Verizon Maryland |
| (410)546- | Landline | Verizon Maryland |
| (410)547- | Landline | Verizon Maryland |
| (410)548- | Landline | Verizon Maryland |
| (410)549- | Landline | Verizon Maryland |
| (410)550- | Landline | Verizon Maryland |
| (410)551- | Landline | Verizon Maryland |
| (410)552- | Landline | Verizon Maryland |
| (410)553- | Landline | Verizon Maryland |
| (410)554- | Landline | Verizon Maryland |
| (410)556- | Landline | Verizon Maryland |
| (410)557- | Landline | Verizon Maryland |
| (410)558- | Landline | Verizon Maryland |
| (410)559- | Landline | Teleport Communications America |
| (410)560- | Landline | Verizon Maryland |
| (410)561- | Landline | Verizon Maryland |
| (410)562- | Wireless | New Cingular Wireless Pcs |
| (410)563- | Landline | Verizon Maryland |
| (410)564- | Landline | Teleport Communications America |
| (410)565- | Landline | Level 3 Telecom Of Maryland |
| (410)566- | Landline | Verizon Maryland |
| (410)567- | Landline | Mcimetro Access Transmission Services |
| (410)568- | Landline | Teleport Communications America |
| (410)569- | Landline | Verizon Maryland |
| (410)570- | Wireless | New Cingular Wireless Pcs |
| (410)571- | Landline | Verizon Maryland |
| (410)572- | Landline | Verizon Maryland |
| (410)573- | Landline | Verizon Maryland |
| (410)574- | Landline | Verizon Maryland |
| (410)575- | Landline | Verizon Maryland |
| (410)576- | Landline | Verizon Maryland |
| (410)577- | Landline | Verizon Maryland |
| (410)578- | Landline | Verizon Maryland |
| (410)579- | Landline | Verizon Maryland |
| (410)580- | Landline | Verizon Maryland |
| (410)581- | Landline | Verizon Maryland |
| (410)582- | Landline | Verizon Maryland |
| (410)583- | Landline | Verizon Maryland |
| (410)584- | Landline | Verizon Maryland |
| (410)585- | Landline | Verizon Maryland |
| (410)586- | Landline | Verizon Maryland |
| (410)587- | Landline | Mcimetro Access Transmission Services |
| (410)588- | Landline | Verizon Maryland |
| (410)589- | Landline | Level 3 Telecom Of Maryland |
| (410)590- | Landline | Verizon Maryland |
| (410)591- | Wireless | Verizon Wireless |
| (410)592- | Landline | Verizon Maryland |
| (410)593- | Landline | Verizon Maryland |
| (410)594- | Landline | Verizon Maryland |
| (410)595- | Landline | Level 3 Telecom Of Maryland |
| (410)596- | Wireless | Verizon Wireless |
| (410)597- | Landline | Verizon Maryland |
| (410)598- | Wireless | Verizon Wireless |
| (410)599- | Wireless | New Cingular Wireless Pcs |
| (410)600- | Landline | Mcimetro Access Transmission Services |
| (410)601- | Landline | Verizon Maryland |
| (410)602- | Landline | Verizon Maryland |
| (410)603- | Wireless | New Cingular Wireless Pcs |
| (410)604- | Landline | Verizon Maryland |
| (410)605- | Landline | Verizon Maryland |
| (410)606- | Landline | Verizon Maryland |
| (410)607- | Wireless | Usa Mobility Wireless |
| (410)608- | Wireless | New Cingular Wireless Pcs |
| (410)609- | Landline | Verizon Maryland |
| (410)610- | Wireless | Verizon Wireless |
| (410)612- | Landline | Verizon Maryland |
| (410)613- | Landline | Verizon Maryland |
| (410)614- | Landline | Verizon Maryland |
| (410)615- | Wireless | New Cingular Wireless Pcs |
| (410)616- | Landline | Mcimetro Access Transmission Services |
| (410)617- | Landline | Verizon Maryland |
| (410)618- | Landline | Idt America |
| (410)619- | Landline | American Messaging Services |
| (410)620- | Landline | Verizon Maryland |
| (410)621- | Landline | Verizon Maryland |
| (410)622- | Landline | Mcimetro Access Transmission Services |
| (410)623- | Landline | Verizon Maryland |
| (410)624- | Landline | Verizon Maryland |
| (410)625- | Landline | Verizon Maryland |
| (410)626- | Landline | Verizon Maryland |
| (410)627- | Wireless | Verizon Wireless |
| (410)628- | Landline | Verizon Maryland |
| (410)629- | Landline | Verizon Maryland |
| (410)630- | Landline | Mcimetro Access Transmission Services |
| (410)631- | Landline | Verizon Maryland |
| (410)632- | Landline | Verizon Maryland |
| (410)633- | Landline | Verizon Maryland |
| (410)634- | Landline | Verizon Maryland |
| (410)635- | Landline | Verizon Maryland |
| (410)636- | Landline | Verizon Maryland |
| (410)637- | Landline | Verizon Maryland |
| (410)638- | Landline | Verizon Maryland |
| (410)639- | Landline | Verizon Maryland |
| (410)640- | Wireless | Usa Mobility Wireless |
| (410)641- | Landline | Verizon Maryland |
| (410)642- | Landline | Verizon Maryland |
| (410)643- | Landline | Verizon Maryland |
| (410)644- | Landline | Verizon Maryland |
| (410)645- | Landline | Mcimetro Access Transmission Services |
| (410)646- | Landline | Verizon Maryland |
| (410)647- | Landline | Verizon Maryland |
| (410)648- | Landline | Verizon Maryland |
| (410)649- | Landline | Teleport Communications America |
| (410)650- | Landline | Mcimetro Access Transmission Services |
| (410)651- | Landline | Verizon Maryland |
| (410)652- | Wireless | New Cingular Wireless Pcs |
| (410)653- | Landline | Verizon Maryland |
| (410)654- | Landline | Verizon Maryland |
| (410)655- | Landline | Verizon Maryland |
| (410)656- | Landline | Armstrong Telecommunications |
| (410)657- | Landline | Mcimetro Access Transmission Services |
| (410)658- | Landline | Armstrong Tel. Co. Of Maryland |
| (410)659- | Landline | Verizon Maryland |
| (410)660- | Wireless | Sprint Spectrum |
| (410)661- | Landline | Verizon Maryland |
| (410)662- | Landline | Verizon Maryland |
| (410)663- | Landline | Verizon Maryland |
| (410)664- | Landline | Verizon Maryland |
| (410)665- | Landline | Verizon Maryland |
| (410)666- | Landline | Verizon Maryland |
| (410)667- | Landline | Verizon Maryland |
| (410)668- | Landline | Verizon Maryland |
| (410)669- | Landline | Verizon Maryland |
| (410)670- | Landline | Mcimetro Access Transmission Services |
| (410)671- | Landline | Verizon Maryland |
| (410)672- | Landline | Verizon Maryland |
| (410)673- | Landline | Verizon Maryland |
| (410)674- | Landline | Verizon Maryland |
| (410)675- | Landline | Verizon Maryland |
| (410)676- | Landline | Verizon Maryland |
| (410)677- | Landline | Verizon Maryland |
| (410)678- | Wireless | Usa Mobility Wireless |
| (410)679- | Landline | Verizon Maryland |
| (410)680- | Landline | Level 3 Telecom Of Maryland |
| (410)681- | Wireless | Usa Mobility Wireless |
| (410)682- | Landline | Verizon Maryland |
| (410)683- | Landline | Verizon Maryland |
| (410)684- | Landline | Verizon Maryland |
| (410)685- | Landline | Verizon Maryland |
| (410)686- | Landline | Verizon Maryland |
| (410)687- | Landline | Verizon Maryland |
| (410)688- | Wireless | Verizon Wireless |
| (410)689- | Landline | Teleport Communications America |
| (410)690- | Landline | At&T |
| (410)691- | Landline | Verizon Maryland |
| (410)692- | Landline | Verizon Maryland |
| (410)693- | Wireless | New Cingular Wireless Pcs |
| (410)694- | Landline | Verizon Maryland |
| (410)695- | Landline | Verizon Maryland |
| (410)696- | Landline | Mcimetro Access Transmission Services |
| (410)697- | Landline | Mcimetro Access Transmission Services |
| (410)698- | Landline | Mcimetro Access Transmission Services |
| (410)699- | Wireless | Sprint Spectrum |
| (410)701- | Landline | Mcimetro Access Transmission Services |
| (410)702- | Landline | Mcimetro Access Transmission Services |
| (410)703- | Wireless | Verizon Wireless |
| (410)704- | Landline | Mcimetro Access Transmission Services |
| (410)705- | Landline | Bandwidth.Com Clec |
| (410)706- | Landline | Verizon Maryland |
| (410)707- | Wireless | Verizon Wireless |
| (410)708- | Wireless | Verizon Wireless |
| (410)709- | Landline | Mcimetro Access Transmission Services |
| (410)710- | Landline | Omnipoint Communications Cap Operations |
| (410)712- | Landline | Verizon Maryland |
| (410)713- | Landline | Level 3 Communications |
| (410)714- | Wireless | New Cingular Wireless Pcs |
| (410)715- | Landline | Verizon Maryland |
| (410)716- | Landline | Verizon Maryland |
| (410)717- | Landline | Level 3 Telecom Of Maryland |
| (410)718- | Wireless | New Cingular Wireless Pcs |
| (410)719- | Landline | Verizon Maryland |
| (410)720- | Landline | Verizon Maryland |
| (410)721- | Landline | Verizon Maryland |
| (410)722- | Landline | Verizon Maryland |
| (410)723- | Landline | Verizon Maryland |
| (410)724- | Landline | Verizon Maryland |
| (410)725- | Wireless | Sprint Spectrum |
| (410)726- | Wireless | Verizon Wireless |
| (410)727- | Landline | Verizon Maryland |
| (410)728- | Landline | Verizon Maryland |
| (410)729- | Landline | Verizon Maryland |
| (410)730- | Landline | Verizon Maryland |
| (410)731- | Wireless | Usa Mobility Wireless |
| (410)732- | Landline | Verizon Maryland |
| (410)733- | Wireless | New Cingular Wireless Pcs |
| (410)734- | Landline | Verizon Maryland |
| (410)735- | Landline | Cavalier Telephone Mid-Atlantic |
| (410)736- | Landline | Verizon Maryland |
| (410)737- | Landline | Verizon Maryland |
| (410)738- | Landline | Verizon Maryland |
| (410)739- | Wireless | New Cingular Wireless Pcs |
| (410)740- | Landline | Verizon Maryland |
| (410)741- | Landline | Verizon Maryland |
| (410)742- | Landline | Verizon Maryland |
| (410)743- | Wireless | Usa Mobility Wireless |
| (410)744- | Landline | Verizon Maryland |
| (410)745- | Landline | Verizon Maryland |
| (410)746- | Wireless | Verizon Wireless |
| (410)747- | Landline | Verizon Maryland |
| (410)748- | Wireless | Usa Mobility Wireless |
| (410)749- | Landline | Verizon Maryland |
| (410)750- | Landline | Verizon Maryland |
| (410)751- | Landline | Verizon Maryland |
| (410)752- | Landline | Verizon Maryland |
| (410)753- | Landline | Mcimetro Access Transmission Services |
| (410)754- | Landline | Verizon Maryland |
| (410)755- | Landline | Verizon Maryland |
| (410)756- | Landline | Verizon Maryland |
| (410)757- | Landline | Verizon Maryland |
| (410)758- | Landline | Verizon Maryland |
| (410)759- | Landline | Verizon Maryland |
| (410)760- | Landline | Verizon Maryland |
| (410)761- | Landline | Verizon Maryland |
| (410)762- | Landline | Verizon Maryland |
| (410)763- | Landline | Verizon Maryland |
| (410)764- | Landline | Verizon Maryland |
| (410)765- | Landline | Verizon Maryland |
| (410)766- | Landline | Verizon Maryland |
| (410)767- | Landline | Verizon Maryland |
| (410)768- | Landline | Verizon Maryland |
| (410)769- | Landline | Verizon Maryland |
| (410)770- | Landline | Verizon Maryland |
| (410)771- | Landline | Verizon Maryland |
| (410)772- | Landline | Verizon Maryland |
| (410)773- | Landline | Verizon Maryland |
| (410)774- | Landline | Mcimetro Access Transmission Services |
| (410)775- | Landline | Verizon Maryland |
| (410)776- | Landline | Teleport Communications America |
| (410)777- | Landline | Mcimetro Access Transmission Services |
| (410)778- | Landline | Verizon Maryland |
| (410)779- | Landline | Level 3 Communications |
| (410)780- | Landline | Verizon Maryland |
| (410)781- | Landline | Verizon Maryland |
| (410)782- | Landline | Verizon Maryland |
| (410)783- | Landline | Verizon Maryland |
| (410)784- | Landline | Verizon Maryland |
| (410)785- | Landline | Verizon Maryland |
| (410)786- | Landline | Mcimetro Access Transmission Services |
| (410)787- | Landline | Verizon Maryland |
| (410)788- | Landline | Verizon Maryland |
| (410)789- | Landline | Verizon Maryland |
| (410)790- | Wireless | New Cingular Wireless Pcs |
| (410)791- | Landline | Verizon Maryland |
| (410)792- | Landline | Verizon Maryland |
| (410)793- | Landline | Verizon Maryland |
| (410)794- | Landline | Level 3 Telecom Of Maryland |
| (410)795- | Landline | Verizon Maryland |
| (410)796- | Landline | Verizon Maryland |
| (410)797- | Landline | Verizon Maryland |
| (410)798- | Landline | Verizon Maryland |
| (410)799- | Landline | Verizon Maryland |
| (410)800- | Wireless | Verizon Wireless |
| (410)801- | Landline | Mcimetro Access Transmission Services |
| (410)802- | Wireless | New Cingular Wireless Pcs |
| (410)803- | Landline | Verizon Maryland |
| (410)804- | Wireless | Verizon Wireless |
| (410)805- | Wireless | Sprint Spectrum |
| (410)806- | Wireless | Usa Mobility Wireless |
| (410)807- | Landline | Level 3 Telecom Of Maryland |
| (410)808- | Wireless | Sprint Spectrum |
| (410)809- | Landline | Cavalier Telephone, Llc (Mid-Atlantic) |
| (410)810- | Landline | Verizon Maryland |
| (410)812- | Wireless | New Cingular Wireless Pcs |
| (410)813- | Landline | Verizon Maryland |
| (410)814- | Landline | Cavalier Telephone Mid-Atlantic |
| (410)815- | Landline | Verizon Maryland |
| (410)816- | Landline | Verizon Maryland |
| (410)817- | Landline | Verizon Maryland |
| (410)818- | Landline | Teleport Communications America |
| (410)819- | Landline | Verizon Maryland |
| (410)820- | Landline | Verizon Maryland |
| (410)821- | Landline | Verizon Maryland |
| (410)822- | Landline | Verizon Maryland |
| (410)823- | Landline | Verizon Maryland |
| (410)824- | Landline | Level 3 Telecom Of Maryland |
| (410)825- | Landline | Verizon Maryland |
| (410)826- | Landline | Onvoy |
| (410)827- | Landline | Verizon Maryland |
| (410)828- | Landline | Verizon Maryland |
| (410)829- | Wireless | Verizon Wireless |
| (410)830- | Landline | Verizon Maryland |
| (410)831- | Landline | Omnipoint Communications Cap Operations |
| (410)832- | Landline | Verizon Maryland |
| (410)833- | Landline | Verizon Maryland |
| (410)834- | Landline | Centurylink Communications |
| (410)835- | Landline | Verizon Maryland |
| (410)836- | Landline | Verizon Maryland |
| (410)837- | Landline | Verizon Maryland |
| (410)838- | Landline | Verizon Maryland |
| (410)839- | Wireless | Usa Mobility Wireless |
| (410)840- | Landline | Verizon Maryland |
| (410)841- | Landline | Verizon Maryland |
| (410)842- | Landline | Mcimetro Access Transmission Services |
| (410)843- | Landline | Teleport Communications America |
| (410)844- | Landline | Peerless Network Of Maryland |
| (410)845- | Wireless | Sprint Spectrum |
| (410)846- | Landline | Mcimetro Access Transmission Services |
| (410)847- | Landline | Verizon Maryland |
| (410)848- | Landline | Verizon Maryland |
| (410)849- | Landline | Verizon Maryland |
| (410)850- | Landline | Verizon Maryland |
| (410)851- | Landline | Verizon Maryland |
| (410)852- | Wireless | New Cingular Wireless Pcs |
| (410)853- | Landline | Verizon Maryland |
| (410)854- | Landline | Verizon Maryland |
| (410)855- | Landline | Verizon Maryland |
| (410)856- | Landline | Verizon Maryland |
| (410)857- | Landline | Verizon Maryland |
| (410)858- | Landline | Verizon Maryland |
| (410)859- | Landline | Verizon Maryland |
| (410)860- | Landline | Verizon Maryland |
| (410)861- | Landline | Verizon Maryland |
| (410)862- | Landline | Onvoy |
| (410)863- | Landline | Verizon Maryland |
| (410)864- | Landline | Mcimetro Access Transmission Services |
| (410)865- | Landline | Verizon Maryland |
| (410)866- | Landline | Verizon Maryland |
| (410)867- | Landline | Verizon Maryland |
| (410)868- | Wireless | New Cingular Wireless Pcs |
| (410)869- | Landline | Verizon Maryland |
| (410)870- | Landline | Comcast Ip Phone |
| (410)871- | Landline | Verizon Maryland |
| (410)872- | Landline | Verizon Maryland |
| (410)873- | Landline | Verizon Maryland |
| (410)874- | Landline | Mcimetro Access Transmission Services |
| (410)875- | Landline | Verizon Maryland |
| (410)876- | Landline | Verizon Maryland |
| (410)877- | Landline | Verizon Maryland |
| (410)878- | Landline | Mcimetro Access Transmission Services |
| (410)879- | Landline | Verizon Maryland |
| (410)880- | Landline | Verizon Maryland |
| (410)881- | Landline | Mcimetro Access Transmission Services |
| (410)882- | Landline | Verizon Maryland |
| (410)883- | Landline | Verizon Maryland |
| (410)884- | Landline | Verizon Maryland |
| (410)885- | Landline | Verizon Maryland |
| (410)886- | Landline | Verizon Maryland |
| (410)887- | Landline | Verizon Maryland |
| (410)888- | Landline | Verizon Maryland |
| (410)889- | Landline | Verizon Maryland |
| (410)890- | Wireless | Usa Mobility Wireless |
| (410)891- | Landline | Mcimetro Access Transmission Services |
| (410)892- | Landline | Verizon Maryland |
| (410)893- | Landline | Verizon Maryland |
| (410)894- | Wireless | Usa Mobility Wireless |
| (410)895- | Landline | Verizon Maryland |
| (410)896- | Landline | Verizon Maryland |
| (410)897- | Landline | Verizon Maryland |
| (410)898- | Landline | Verizon Maryland |
| (410)899- | Wireless | Usa Mobility Wireless |
| (410)900- | Landline | Ctc Communications |
| (410)901- | Landline | Verizon Maryland |
| (410)902- | Landline | Verizon Maryland |
| (410)903- | Wireless | Sprint Spectrum |
| (410)904- | Landline | Mcimetro Access Transmission Services |
| (410)905- | Wireless | Sprint Spectrum |
| (410)906- | Landline | Verizon Maryland |
| (410)907- | Landline | Mcimetro Access Transmission Services |
| (410)908- | Wireless | Sprint Spectrum |
| (410)909- | Wireless | Usa Mobility Wireless |
| (410)910- | Landline | Mcimetro Access Transmission Services |
| (410)912- | Landline | Cavalier Telephone, Llc (Mid-Atlantic) |
| (410)913- | Wireless | Verizon Wireless |
| (410)914- | Landline | Cavalier Telephone, Llc (Mid-Atlantic) |
| (410)915- | Landline | Baltimore-Washington Telephone (Bwt) |
| (410)916- | Wireless | Verizon Wireless |
| (410)917- | Wireless | New Cingular Wireless Pcs |
| (410)918- | Landline | Verizon Maryland |
| (410)919- | Landline | Mcimetro Access Transmission Services |
| (410)920- | Wireless | New Cingular Wireless Pcs |
| (410)921- | Landline | Level 3 Telecom Of Maryland |
| (410)922- | Landline | Verizon Maryland |
| (410)923- | Landline | Verizon Maryland |
| (410)924- | Wireless | Verizon Wireless |
| (410)925- | Wireless | Verizon Wireless |
| (410)926- | Wireless | New Cingular Wireless Pcs |
| (410)927- | Landline | Level 3 Telecom Of Maryland |
| (410)928- | Landline | Verizon Maryland |
| (410)929- | Landline | Bandwidth.Com Clec |
| (410)930- | Landline | Redi-Call Communications Co. |
| (410)931- | Landline | Verizon Maryland |
| (410)932- | Wireless | Usa Mobility Wireless |
| (410)933- | Landline | Verizon Maryland |
| (410)934- | Wireless | New Cingular Wireless Pcs |
| (410)935- | Wireless | Verizon Wireless |
| (410)936- | Landline | Comcast Ip Phone |
| (410)937- | Wireless | Verizon Wireless |
| (410)938- | Landline | Verizon Maryland |
| (410)939- | Landline | Verizon Maryland |
| (410)940- | Landline | Atx Telecommunications Services, Ltd. |
| (410)941- | Landline | Verizon Maryland |
| (410)942- | Landline | Verizon Maryland |
| (410)943- | Landline | Verizon Maryland |
| (410)944- | Landline | Verizon Maryland |
| (410)945- | Landline | Verizon Maryland |
| (410)946- | Landline | Verizon Maryland |
| (410)947- | Landline | Verizon Maryland |
| (410)948- | Wireless | New Cingular Wireless Pcs |
| (410)949- | Landline | Mcimetro Access Transmission Services |
| (410)951- | Landline | Teleport Communications America |
| (410)952- | Wireless | Verizon Wireless |
| (410)953- | Landline | Verizon Maryland |
| (410)955- | Landline | Verizon Maryland |
| (410)956- | Landline | Verizon Maryland |
| (410)957- | Landline | Verizon Maryland |
| (410)960- | Wireless | Verizon Wireless |
| (410)961- | Wireless | Sprint Spectrum |
| (410)962- | Landline | Verizon Maryland |
| (410)963- | Wireless | Sprint Spectrum |
| (410)964- | Landline | Verizon Maryland |
| (410)965- | Landline | Verizon Maryland |
| (410)966- | Landline | Verizon Maryland |
| (410)967- | Wireless | New Cingular Wireless Pcs |
| (410)968- | Landline | Verizon Maryland |
| (410)969- | Landline | Verizon Maryland |
| (410)970- | Landline | Mcimetro Access Transmission Services |
| (410)971- | Wireless | New Cingular Wireless Pcs |
| (410)972- | Landline | Teleport Communications America |
| (410)973- | Landline | Mcc Telephony Of The Mid-Atlantic |
| (410)974- | Landline | Verizon Maryland |
| (410)975- | Landline | Verizon Maryland |
| (410)977- | Wireless | Sprint Spectrum |
| (410)978- | Wireless | New Cingular Wireless Pcs |
| (410)979- | Wireless | New Cingular Wireless Pcs |
| (410)980- | Wireless | Verizon Wireless |
| (410)981- | Landline | Verizon Maryland |
| (410)982- | Landline | Quantum Telecommunications |
| (410)983- | Landline | Verizon Maryland |
| (410)984- | Wireless | Sprint Spectrum |
| (410)985- | Landline | Baltimore-Washington Telephone (Bwt) |
| (410)986- | Landline | Verizon Maryland |
| (410)987- | Landline | Verizon Maryland |
| (410)988- | Landline | Verizon Maryland |
| (410)989- | Landline | Verizon Maryland |
| (410)990- | Landline | Verizon Maryland |
| (410)991- | Wireless | Verizon Wireless |
| (410)992- | Landline | Verizon Maryland |
| (410)993- | Landline | Verizon Maryland |
| (410)994- | Landline | Verizon Maryland |
| (410)995- | Landline | Verizon Maryland |
| (410)996- | Landline | Verizon Maryland |
| (410)997- | Landline | Verizon Maryland |
| (410)998- | Landline | Verizon Maryland |
| (410)999- | Landline | Baltimore-Washington Telephone (Bwt) |
| No prefixes match “”. | ||
Frequently Asked Questions about the 410 Area Code
Who called me from a 410 number?
20% of its assigned prefixes are wireless. Largest holders: Verizon Maryland, Verizon Wireless, and New Cingular Wireless Pcs.
Is 410 a scam area code?
Carriers hold 78% of its possible prefixes.
Why do I keep getting calls from the 410 area code?
Complaints fell 4% on the prior period.
Should I answer an unknown 410 number?
68% of its FTC complaints were robocalls. Its most-reported specific subject was "Dropped call or no message", at 25%.
Where is area code 410?
410 covers 208 cities and 3,212,271 residents in 17 Maryland counties, led by Baltimore County, Baltimore city, and Anne Arundel County.
When did area code 410 go into service?
410 went into service on October 6, 1991. It was split from 301. 443 and 667 now share its territory.
Is 410 a real area code?
Yes: 32 carriers hold its prefixes, serving 208 cities in Baltimore County, Baltimore city, Anne Arundel County, and 14 other counties.
What timezone is the 410 area code in?
410 is on Eastern Time (ET).
How do I call a 410 number from abroad?
Dial +1 410, then the number.