🇺🇸 748 area code
Area code 748 covers Fort Collins, Greeley, Durango and Loveland and the surrounding area in Colorado. It shares that territory with 970, so the same neighbourhood can have numbers in any of them. Enter a 748 number below for a free check before you call back.
- Location: Fort Collins, Colorado
- Time zone: Mountain (UTC−7)
- In service since July 7, 2025
Look up a number
Validity, carrier, line type, and region on the first pass.
Area code 748 at a glance
Cities in the 748 overlay area
- Fort Collins
- Greeley
- Durango
- Loveland
- Grand Junction
- Aspen
- Glenwood Springs
- Avon
- Cortez
- Montrose
Is a 748 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 748 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 748 number to people in Colorado because a local-looking call is more likely to be answered. If a 748 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 748
748 entered service on July 7, 2025, as an overlay on 970, which had run short of numbers.
It is part of the 748/970 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
Because 748 overlays the same ground, the cities listed are those of the codes it shares with.
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FAQ
Area code 748 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 748?
Area code 748 is in Colorado, United States. It covers Fort Collins, Greeley, Durango, Loveland, Grand Junction and Aspen.
What time zone is area code 748?
748 is in the Mountain (UTC−7) time zone, and observes daylight saving time.
What area codes overlay 748?
970 serves the same area as 748. Numbers in all of them are local to one another.
When did area code 748 start?
748 entered service on July 7, 2025, created from 970.
How do I find out who called me from 748?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 748?
If you live in or near Colorado, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 748 callers who will not leave a message are best looked up before you call back.
Got a call from 748?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.