Colorado
Area code 748
Area code 748 covers Durango, Eagle, Estes Park, Fort Collins, Fraser and more in Colorado, in the Mountain time zone. It has been in service since 2025. It shares its area with 970 (an overlay).
Most reported 748 numbers
Carriers in 748
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 748
Every 748 exchange
The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.
| Exchange | City | Carrier | Type | Flagged |
|---|---|---|---|---|
| 748-222 | Durango | Wide Voice | Landline | 0 |
| 748-333 | Eagle | Wide Voice | Landline | 0 |
| 748-444 | Fort Collins | Ahoi | Landline | 0 |
| 748-500 | Grand Junction | Wide Voice | Landline | 0 |
| 748-666 | Fraser | Onvoy (Sinch) | VoIP | 0 |
| 748-777 | Greeley | Onvoy (Sinch) | VoIP | 0 |
| 748-800 | Gilcrest | Onvoy (Sinch) | VoIP | 0 |
| 748-888 | Mead | Wide Voice | Landline | 0 |
| 748-900 | Ignacio | Onvoy (Sinch) | VoIP | 0 |
| 748-999 | Estes Park | Onvoy (Sinch) | VoIP | 0 |
Area code 748 questions
Where is area code 748?
Area code 748 is in Colorado. Its biggest rate centers are Durango, Eagle, Estes Park, Fort Collins, Fraser.
What time zone is area code 748?
Area code 748 is in the Mountain time zone.
Is a call from area code 748 a scam?
An area code alone can't tell you. Scammers use and spoof numbers in every area code. Look up the full number to see its reports and FTC/FCC complaints.
What carriers use area code 748?
Of its 10 exchanges, the most were assigned to Onvoy (Sinch), Wide Voice, Ahoi. Numbers can be ported to any carrier, so the exchange shows the original carrier only.
What area codes overlay 748?
748 shares its area with 970. In an overlay, new numbers get the newer codes and you dial all ten digits.