748 Area Code — Colorado
748 is a North American Numbering Plan area code for Colorado, the United States. It covers about 196,917 people in 16 towns and 24 ZIP codes, including Greeley, Durango and Estes Park.
| Field | Value |
|---|---|
| Area code | 748 |
| Country | United States (+1) |
| State / province | Colorado |
| Type | Shares its towns with 970 |
| Time zone | Mountain |
| Population covered | 196,917 |
| Towns covered | 16 |
| ZIP codes | 24 |
| Approx. centre | 39.741, -105.708 |
Where area code 748 is used
Area code 748 is assigned to Colorado, the United States, inside the North American Numbering Plan. Numbers in the code are written (748) NXX-XXXX at home and +1 748 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Other area codes in this footprint: 970. They serve towns in the same territory, so a single street can contain numbers from more than one code. That is normal in the NANP and does not change how you dial.
Towns and cities in area code 748
The 16 towns below are the largest in the 748 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Greeley | Weld County | 119,344 | 6 |
| Durango | La Plata County | 40,010 | 3 |
| Estes Park | Larimer County | 9,657 | 2 |
| Eagle | Eagle County | 8,958 | 1 |
| Ignacio | La Plata County | 5,571 | 1 |
| Mead | Weld County | 5,155 | 1 |
| Fraser | Grand County | 2,614 | 1 |
| Bellvue | Larimer County | 1,903 | 1 |
| Gilcrest | Weld County | 1,026 | 1 |
| Empire | Clear Creek County | 970 | 1 |
| Gill | Weld County | 685 | 1 |
| Dumont | Clear Creek County | 348 | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Weld County | 10 |
| Larimer County | 4 |
| La Plata County | 4 |
| Clear Creek County | 2 |
| Eagle County | 2 |
| Grand County | 1 |
| Gilpin County | 1 |
Other area codes serving the same towns
Nearby area codes
How to dial area code 748
- Within North America: 748 + 7-digit number (748-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 748, then the 7-digit number — for example 00 1 748 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 748?
748 is a North American Numbering Plan area code assigned to Colorado, the United States. It covers about 196,917 people in 16 towns.
Is 748 a US or Canadian area code?
748 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 748 in?
Area code 748 is in the Mountain time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.