The 748 area code covers the same area as 970, including Fort Collins, Greeley and 107 more places in Colorado.
Area code 748 is in Colorado, on Mountain Time. In the 748 area, phone numbers are given out most in Larimer County, then Weld and Mesa counties. It has been in service since July 7, 2025. 970 covers the same area, so two neighbours can have different area codes.
- Where
- 8 counties in Colorado, mostly Larimer County, Weld County and Mesa County
- Time zone
- Mountain Time
- In service since
- July 7, 2025
- Shares its area with
- 970 (since 1995)
- Prefixes in use
- None assigned yet, per NANPA
- How to dial
- Local calls need all 10 digits: 748-555-0142.
Find out who called you from a 748 number.
Enter the full 10-digit number to see who it is listed to, the city and state on the listing, and whether it is a mobile, landline or VoIP line. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup.
748 started in 2025 as an overlay on 970, and its ground has not changed since.
2025
748 starts on July 7, 2025, as an overlay on 970: new numbers on the same ground.
A 748 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 748 are 303, 719 and 307.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Colorado has 5 other area codes.
These are the questions people ask most about area code 748.
Where is area code 748?
748 covers Fort Collins, Greeley, Grand Junction and Loveland and 105 more places in Colorado. In the 748 area, phone numbers are given out most in Larimer County, then Weld and Mesa counties.
What state is area code 748 in?
Colorado. 748 is a Colorado area code on Mountain Time.
What cities use area code 748?
The places holding the most 748 prefixes are Fort Collins, Greeley, Grand Junction, Loveland, Durango, Vail, Glenwood Springs and Montrose, out of 109 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
What time zone is area code 748 in?
748 is on Mountain Time.
When did area code 748 start?
748 went into service on July 7, 2025, as an overlay on 970: new numbers for the same area.
Is 748 the same area as 970?
Yes. 970 (since 1995) covers the same ground as 748. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 748 number?
Local calls need all 10 digits: 748-555-0142.
Is 748 a toll-free number?
No. 748 is a regular area code for Fort Collins and Greeley in Colorado, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 748?
The closest are 303/720/983 (Denver, Colorado), 719 (Colorado Springs, Colorado) and 307 (Cheyenne, Wyoming), measured between the centres of each area.
Who called me from a 748 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 748 a scam?
748 is a real Colorado area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.