748 Area CodeFort Collins, CO
Area code 748 covers Fort Collins and nearby communities in Colorado, in the Mountain Time (MT) zone, home to about 1,253,161 people across 176 cities. It was added in 2025 as an overlay of 970, so the same region uses both codes and every local call needs all ten digits.
Overview
- Major City
- Fort Collins
- State
- Colorado (CO)
- Timezone
- Mountain Time (MT)
- Current Time
- –:––
- Overlay
- Yes – shares area with 970
Where is area code 748?
Area code 748 serves part of Fort Collins, CO and the surrounding areas. It has a single overlay (970) that serves the same area.
Overview of the 748 Area Code
What is the 748 area code?
The 748 area code serves Fort Collins, Colorado, alongside other established area codes. When you see a 748 number, it indicates a local number within this geographic area.
Why was area code 748 created?
Area code 748 went into service on July 7, 2025, as an overlay of 970. An overlay adds a second code to the same territory instead of splitting it: existing 970 numbers kept their digits, new lines began receiving 748 numbers, and local calls in the region require all ten digits.
Geographic Coverage of the 748 Area Code
The 748 area code serves Fort Collins and surrounding areas in Colorado. It operates within the Mountain Time (MT) time zone. It complements the coverage of area code 970. This area code covers several key cities, including:
- Fort Collins
- Greeley
- Loveland
- Grand Junction
- Windsor
- Evans
Got a call from a 748 number? It came from Fort Collins, CO. Since 748 overlays with 970, every local call in the region needs all ten digits to land on the right line. Of the listed cities' population, Fort Collins accounts for about 17.4%; the rest is split across 175 smaller cities.
Fort Collins Area Codes Overview
Fort Collins is served by multiple area codes, reflecting its telecommunications needs. The 748 area code operates alongside 970. Here are the area codes serving this region:
The introduction of the 748 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 748 cover?
| City | State | Population | Population in 748 | % of listed-city population | % of City |
|---|---|---|---|---|---|
| Fort Collins | CO | 170,924 | 170,924 | 17.4% | 100.0% |
| Greeley | CO | 114,363 | 114,363 | 11.7% | 100.0% |
| Loveland | CO | 81,102 | 81,102 | 8.3% | 100.0% |
| Grand Junction | CO | 70,554 | 70,554 | 7.2% | 100.0% |
| Windsor | CO | 41,734 | 41,734 | 4.3% | 100.0% |
| Evans | CO | 22,394 | 22,394 | 2.3% | 100.0% |
| Montrose | CO | 21,646 | 21,646 | 2.2% | 100.0% |
| Johnstown | CO | 20,639 | 20,639 | 2.1% | 100.0% |
| Clifton | CO | 19,889 | 19,889 | 2.0% | 100.0% |
| Durango | CO | 19,811 | 19,811 | 2.0% | 100.0% |
| Fruita | CO | 13,912 | 13,912 | 1.4% | 100.0% |
| Berthoud | CO | 13,648 | 13,648 | 1.4% | 100.0% |
| Steamboat Springs | CO | 13,620 | 13,620 | 1.4% | 100.0% |
| Sterling | CO | 13,114 | 13,114 | 1.3% | 100.0% |
| Wellington | CO | 12,100 | 12,100 | 1.2% | 100.0% |
| Fort Morgan | CO | 11,835 | 11,835 | 1.2% | 100.0% |
| Severance | CO | 11,554 | 11,554 | 1.2% | 100.0% |
| Timnath | CO | 10,848 | 10,848 | 1.1% | 100.0% |
| Rifle | CO | 10,663 | 10,663 | 1.1% | 100.0% |
| Glenwood Springs | CO | 10,311 | 10,311 | 1.1% | 100.0% |
| Edwards | CO | 10,266 | 10,266 | 1.1% | 100.0% |
| Delta | CO | 9,688 | 9,688 | 1.0% | 100.0% |
| Gypsum | CO | 9,218 | 9,218 | 0.9% | 100.0% |
| Cortez | CO | 9,151 | 9,151 | 0.9% | 100.0% |
| Milliken | CO | 9,102 | 9,102 | 0.9% | 100.0% |
| Craig | CO | 8,903 | 8,903 | 0.9% | 100.0% |
| Redlands | CO | 8,685 | 8,685 | 0.9% | 100.0% |
| Fruitvale | CO | 7,675 | 7,675 | 0.8% | 100.0% |
| Eagle | CO | 7,349 | 7,349 | 0.8% | 100.0% |
| Orchard Mesa | CO | 6,836 | 6,836 | 0.7% | 100.0% |
| Gunnison | CO | 6,821 | 6,821 | 0.7% | 100.0% |
| Carbondale | CO | 6,758 | 6,758 | 0.7% | 100.0% |
| Mead | CO | 6,735 | 6,735 | 0.7% | 100.0% |
| Aspen | CO | 6,556 | 6,556 | 0.7% | 100.0% |
| Avon | CO | 5,898 | 5,898 | 0.6% | 100.0% |
| Eaton | CO | 5,839 | 5,839 | 0.6% | 100.0% |
| Estes Park | CO | 5,795 | 5,795 | 0.6% | 100.0% |
| Brush | CO | 5,370 | 5,370 | 0.6% | 100.0% |
| Silverthorne | CO | 5,220 | 5,220 | 0.5% | 100.0% |
| New Castle | CO | 4,894 | 4,894 | 0.5% | 100.0% |
| Breckenridge | CO | 4,892 | 4,892 | 0.5% | 100.0% |
| Battlement Mesa | CO | 4,471 | 4,471 | 0.5% | 100.0% |
| Vail | CO | 4,466 | 4,466 | 0.5% | 100.0% |
| Basalt | CO | 4,001 | 4,001 | 0.4% | 100.0% |
| El Jebel | CO | 3,801 | 3,801 | 0.4% | 100.0% |
| Silt | CO | 3,727 | 3,727 | 0.4% | 100.0% |
| Yuma | CO | 3,472 | 3,472 | 0.4% | 100.0% |
| Orchard City | CO | 3,276 | 3,276 | 0.3% | 100.0% |
| Snowmass Village | CO | 2,925 | 2,925 | 0.3% | 100.0% |
| Bayfield | CO | 2,923 | 2,923 | 0.3% | 100.0% |
| Platteville | CO | 2,904 | 2,904 | 0.3% | 100.0% |
| Frisco | CO | 2,732 | 2,732 | 0.3% | 100.0% |
| Ault | CO | 2,660 | 2,660 | 0.3% | 100.0% |
| Palisade | CO | 2,600 | 2,600 | 0.3% | 100.0% |
| Telluride | CO | 2,486 | 2,486 | 0.3% | 100.0% |
| Laporte | CO | 2,450 | 2,450 | 0.3% | 100.0% |
| Cedaredge | CO | 2,432 | 2,432 | 0.3% | 100.0% |
| Meeker | CO | 2,390 | 2,390 | 0.3% | 100.0% |
| Wray | CO | 2,363 | 2,363 | 0.2% | 100.0% |
| Granby | CO | 2,305 | 2,305 | 0.2% | 100.0% |
| La Salle | CO | 2,303 | 2,303 | 0.2% | 100.0% |
| Holyoke | CO | 2,296 | 2,296 | 0.2% | 100.0% |
| Rangely | CO | 2,289 | 2,289 | 0.2% | 100.0% |
| Olathe | CO | 1,970 | 1,970 | 0.2% | 100.0% |
| Hayden | CO | 1,920 | 1,920 | 0.2% | 100.0% |
| Wiggins | CO | 1,872 | 1,872 | 0.2% | 100.0% |
| Pagosa Springs | CO | 1,793 | 1,793 | 0.2% | 100.0% |
| Akron | CO | 1,745 | 1,745 | 0.2% | 100.0% |
| Crested Butte | CO | 1,643 | 1,643 | 0.2% | 100.0% |
| Fraser | CO | 1,515 | 1,515 | 0.2% | 100.0% |
| Kersey | CO | 1,499 | 1,499 | 0.2% | 100.0% |
| Paonia | CO | 1,464 | 1,464 | 0.2% | 100.0% |
| Kremmling | CO | 1,436 | 1,436 | 0.2% | 100.0% |
| Parachute | CO | 1,362 | 1,362 | 0.1% | 100.0% |
| Loma | CO | 1,293 | 1,293 | 0.1% | 100.0% |
| Ridgway | CO | 1,281 | 1,281 | 0.1% | 100.0% |
| Mancos | CO | 1,272 | 1,272 | 0.1% | 100.0% |
| Mountain Village | CO | 1,240 | 1,240 | 0.1% | 100.0% |
| Julesburg | CO | 1,223 | 1,223 | 0.1% | 100.0% |
| Winter Park | CO | 1,192 | 1,192 | 0.1% | 100.0% |
| Pierce | CO | 1,087 | 1,087 | 0.1% | 100.0% |
| Towaoc | CO | 1,087 | 1,087 | 0.1% | 100.0% |
| Keystone | CO | 1,079 | 1,079 | 0.1% | 100.0% |
| Gilcrest | CO | 1,017 | 1,017 | 0.1% | 100.0% |
| Dillon | CO | 1,013 | 1,013 | 0.1% | 100.0% |
| Haxtun | CO | 967 | 967 | 0.1% | 100.0% |
| Minturn | CO | 955 | 955 | 0.1% | 100.0% |
| Mount Crested Butte | CO | 953 | 953 | 0.1% | 100.0% |
| Hotchkiss | CO | 942 | 942 | 0.1% | 100.0% |
| Log Lane Village | CO | 938 | 938 | 0.1% | 100.0% |
| Dolores | CO | 937 | 937 | 0.1% | 100.0% |
| Ouray | CO | 912 | 912 | 0.1% | 100.0% |
| Oak Creek | CO | 856 | 856 | 0.1% | 100.0% |
| Ignacio | CO | 847 | 847 | 0.1% | 100.0% |
| Blue River | CO | 836 | 836 | 0.1% | 100.0% |
| Silverton | CO | 731 | 731 | 0.1% | 100.0% |
| Dotsero | CO | 705 | 705 | 0.1% | 100.0% |
| Dove Creek | CO | 663 | 663 | 0.1% | 100.0% |
| Hot Sulphur Springs | CO | 654 | 654 | 0.1% | 100.0% |
| Cattle Creek | CO | 641 | 641 | 0.1% | 100.0% |
| Nucla | CO | 590 | 590 | 0.1% | 100.0% |
| Walden | CO | 557 | 557 | 0.1% | 100.0% |
| Nunn | CO | 533 | 533 | 0.1% | 100.0% |
| Norwood | CO | 523 | 523 | 0.1% | 100.0% |
| Loghill Village | CO | 521 | 521 | 0.1% | 100.0% |
| Otis | CO | 507 | 507 | 0.1% | 100.0% |
| Naturita | CO | 481 | 481 | 0.1% | 100.0% |
| De Beque | CO | 478 | 478 | 0.1% | 100.0% |
| Fleming | CO | 422 | 422 | 0.1% | 100.0% |
| Tabernash | CO | 417 | 417 | 0.0% | 100.0% |
| Lake City | CO | 413 | 413 | 0.0% | 100.0% |
| Crawford | CO | 407 | 407 | 0.0% | 100.0% |
| Grand Lake | CO | 400 | 400 | 0.0% | 100.0% |
| Yampa | CO | 390 | 390 | 0.0% | 100.0% |
| Copper Mountain | CO | 385 | 385 | 0.0% | 100.0% |
| Collbran | CO | 365 | 365 | 0.0% | 100.0% |
| Red Feather Lakes | CO | 343 | 343 | 0.0% | 100.0% |
| Rico | CO | 336 | 336 | 0.0% | 100.0% |
| Chacra | CO | 329 | 329 | 0.0% | 100.0% |
| Hillrose | CO | 317 | 317 | 0.0% | 100.0% |
| Lewis | CO | 302 | 302 | 0.0% | 100.0% |
| Arboles | CO | 280 | 280 | 0.0% | 100.0% |
| Merino | CO | 278 | 278 | 0.0% | 100.0% |
| Morgan Heights | CO | 266 | 266 | 0.0% | 100.0% |
| Woody Creek | CO | 263 | 263 | 0.0% | 100.0% |
| Ovid | CO | 256 | 256 | 0.0% | 100.0% |
| Garden City | CO | 250 | 250 | 0.0% | 100.0% |
| Dinosaur | CO | 247 | 247 | 0.0% | 100.0% |
| Red Cliff | CO | 241 | 241 | 0.0% | 100.0% |
| Iliff | CO | 240 | 240 | 0.0% | 100.0% |
| Redvale | CO | 236 | 236 | 0.0% | 100.0% |
| Eckley | CO | 236 | 236 | 0.0% | 100.0% |
| Catherine | CO | 228 | 228 | 0.0% | 100.0% |
| Phippsburg | CO | 204 | 204 | 0.0% | 100.0% |
| Peetz | CO | 203 | 203 | 0.0% | 100.0% |
| Ophir | CO | 186 | 186 | 0.0% | 100.0% |
| Southern Ute | CO | 177 | 177 | 0.0% | 100.0% |
| Seibert | CO | 177 | 177 | 0.0% | 100.0% |
| Mulford | CO | 174 | 174 | 0.0% | 100.0% |
| Sedgwick | CO | 164 | 164 | 0.0% | 100.0% |
| Jackson Lake | CO | 154 | 154 | 0.0% | 100.0% |
| Grover | CO | 152 | 152 | 0.0% | 100.0% |
| Weldona | CO | 139 | 139 | 0.0% | 100.0% |
| Portland | CO | 135 | 135 | 0.0% | 100.0% |
| Marble | CO | 135 | 135 | 0.0% | 100.0% |
| Atwood | CO | 133 | 133 | 0.0% | 100.0% |
| Snyder | CO | 132 | 132 | 0.0% | 100.0% |
| Redstone | CO | 130 | 130 | 0.0% | 100.0% |
| Crook | CO | 125 | 125 | 0.0% | 100.0% |
| No Name | CO | 123 | 123 | 0.0% | 100.0% |
| Raymer (New Raymer) | CO | 110 | 110 | 0.0% | 100.0% |
| Orchard | CO | 90 | 90 | 0.0% | 100.0% |
| Idalia | CO | 88 | 88 | 0.0% | 100.0% |
| Joes | CO | 80 | 80 | 0.0% | 100.0% |
| Padroni | CO | 76 | 76 | 0.0% | 100.0% |
| Heeney | CO | 76 | 76 | 0.0% | 100.0% |
| Pitkin | CO | 73 | 73 | 0.0% | 100.0% |
| Maybell | CO | 72 | 72 | 0.0% | 100.0% |
| Montezuma | CO | 71 | 71 | 0.0% | 100.0% |
| Trail Side | CO | 59 | 59 | 0.0% | 100.0% |
| Kirk | CO | 59 | 59 | 0.0% | 100.0% |
| Amherst | CO | 58 | 58 | 0.0% | 100.0% |
| Saddle Ridge | CO | 56 | 56 | 0.0% | 100.0% |
| Paoli | CO | 50 | 50 | 0.0% | 100.0% |
| Parshall | CO | 47 | 47 | 0.0% | 100.0% |
| Laird | CO | 47 | 47 | 0.0% | 100.0% |
| Sawpit | CO | 39 | 39 | 0.0% | 100.0% |
| Colona | CO | 30 | 30 | 0.0% | 100.0% |
| Vernon | CO | 29 | 29 | 0.0% | 100.0% |
| Piedra | CO | 28 | 28 | 0.0% | 100.0% |
| McCoy | CO | 24 | 24 | 0.0% | 100.0% |
| Blue Sky | CO | 24 | 24 | 0.0% | 100.0% |
| Wolcott | CO | 15 | 15 | 0.0% | 100.0% |
| Cathedral | CO | 14 | 14 | 0.0% | 100.0% |
| Norrie | CO | 7 | 7 | 0.0% | 100.0% |
| Fulford | CO | 2 | 2 | 0.0% | 100.0% |
City population is shown in full. The share of each city inside 748 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 748 cover?
1,253,161 residents across 30 counties, counted inside the 748 boundary — a county split between codes contributes only its part.
| County | State | Population in 748 | % of area-code footprint | % of County |
|---|---|---|---|---|
| Larimer County | CO | 357,265 | 29% | 99% |
| Weld County | CO | 235,227 | 19% | 72% |
| Mesa County | CO | 155,703 | 12% | 100% |
| Garfield County | CO | 61,685 | 5% | 100% |
| Eagle County | CO | 55,731 | 4% | 100% |
| La Plata County | CO | 55,638 | 4% | 100% |
| Montrose County | CO | 42,679 | 3% | 100% |
| Delta County | CO | 31,196 | 2% | 100% |
| Summit County | CO | 31,055 | 2% | 100% |
| Morgan County | CO | 29,111 | 2% | 100% |
| Montezuma County | CO | 25,849 | 2% | 100% |
| Routt County | CO | 24,829 | 2% | 100% |
| Logan County | CO | 21,528 | 2% | 100% |
| Pitkin County | CO | 17,358 | 1% | 100% |
| Gunnison County | CO | 16,918 | 1% | 100% |
| Grand County | CO | 15,717 | 1% | 100% |
| Archuleta County | CO | 13,359 | 1% | 100% |
| Moffat County | CO | 13,292 | 1% | 100% |
| Yuma County | CO | 9,988 | 1% | 100% |
| San Miguel County | CO | 8,072 | 1% | 100% |
| Rio Blanco County | CO | 6,529 | 1% | 100% |
| Ouray County | CO | 4,874 | 0% | 100% |
| Washington County | CO | 4,817 | 0% | 100% |
| Phillips County | CO | 4,530 | 0% | 100% |
| Kit Carson County | CO | 2,609 | 0% | 37% |
| Sedgwick County | CO | 2,404 | 0% | 100% |
| Dolores County | CO | 2,326 | 0% | 100% |
| Jackson County | CO | 1,379 | 0% | 100% |
| Hinsdale County | CO | 788 | 0% | 100% |
| San Juan County | CO | 705 | 0% | 100% |
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.
Frequently Asked Questions about the 748 Area Code
Who called me from a 748 number?
A 748 number is assigned to Fort Collins, Colorado, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 748 code to look nearby, so a 748 number doesn't prove the caller is local. If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 748 a scam area code?
No area code is a scam on its own. 748 is a normal, officially assigned code for Fort Collins, Colorado. Spam callers spoof local codes to raise the odds you answer, so 748 on your caller ID says nothing about who is really calling. Judge the call itself, not the area code.
Why do I keep getting calls from the 748 area code?
Repeated calls from different 748 numbers are usually spoofing: a robocaller rotates through 748 numbers so each call looks local and slips past simple blocks. Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 748 number?
If you aren't expecting a 748 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 748 area code?
Block a single 748 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 748 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 748?
Area code 748 covers Fort Collins and the surrounding area in Colorado, spanning 176 cities with about 1,253,161 residents. It shares its area with overlay code 970.
When did area code 748 go into service?
Area code 748 went into service on July 7, 2025. It was added as an overlay of 970, so 748 numbers serve the same area that 970 already covered.
Is 748 a real area code?
Yes. 748 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Fort Collins, Colorado. A real code can still show up on spoofed spam calls, so treat unknown 748 calls with normal caution.
What timezone is the 748 area code in?
The 748 area code is in the Mountain Time (MT). Because a number can be kept when someone moves or switches to VoIP, a specific 748 caller may not be in that zone.
How do I call a 748 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 748 and the seven-digit number. From a mobile phone you can usually just enter +1 748 followed by the number and let the phone add the exit code for you.