The 928 area code covers Yuma, Flagstaff and 68 more places in Arizona.
Area code 928 is in Arizona, on Mountain Time, no daylight saving. In the 928 area, phone numbers are given out most in Coconino County, then Mohave and Yuma counties. It has been in service since June 23, 2001.
- Where
- 8 counties in Arizona, mostly Coconino County, Mohave County and Yuma County
- Time zone
- Mountain Time, no daylight saving
- In service since
- June 23, 2001
- Shares its area with
- No other area code
- Prefixes in use
- 633
- How to dial
- Local calls need all 10 digits: 928-555-0142.
Find out who called you from a 928 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. 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. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (928) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Yuma holds 10% of the phone prefixes in area code 928.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 633 prefixes in use shows where 928 numbers are actually given out.
- Yuma65 prefixes, 10%
- Flagstaff63 prefixes, 10%
- Prescott51 prefixes, 8%
- Sedona41 prefixes, 6%
- Safford34 prefixes, 5%
- Kingman25 prefixes, 4%
- Bullhead City19 prefixes, 3%
- Lake Havasu City19 prefixes, 3%
Also served: Somerton, Payson, Globe and Page and 58 smaller places.
Qwest (Lumen) holds the most phone number prefixes in area code 928: 95 of 633.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 633 prefixes in use in 928 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Qwest (Lumen)Lumen's landline company | 95 | 15% |
| FrontierLandline company | 56 | 9% |
| AT&T MobilityMobile network | 43 | 7% |
| T-MobileMobile network | 40 | 6% |
| Teleport (AT&T)AT&T's business phone network | 31 | 5% |
| Level 3 (Lumen)Lumen's business and wholesale network | 27 | 4% |
| 42 other carriers | 341 | 54% |
73% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
928 has covered the same ground since 2001.
2001
928 starts on June 23, 2001, split off from 520.
A 928 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 928 are 520, 602 and 702.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 928.
Where is area code 928?
928 covers Yuma, Flagstaff, Prescott and Sedona and 66 more places in Arizona. In the 928 area, phone numbers are given out most in Coconino County, then Mohave and Yuma counties.
What state is area code 928 in?
Arizona. 928 is an Arizona area code on Mountain Time, no daylight saving.
What cities use area code 928?
The places holding the most 928 prefixes are Yuma, Flagstaff, Prescott, Sedona, Safford, Kingman, Bullhead City and Lake Havasu City, out of 70 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 928?
No single phone company owns 928. NANPA's records show Qwest (Lumen) holds the most 928 prefixes, 95 of 633, followed by Frontier and AT&T Mobility. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 928 in?
928 is on Mountain Time, no daylight saving.
When did area code 928 start?
928 went into service on June 23, 2001, when it was split off from 520.
How do I dial a 928 number?
Local calls need all 10 digits: 928-555-0142.
Is 928 a toll-free number?
No. 928 is a regular area code for Yuma and Flagstaff in Arizona, 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 928?
The closest are 520 (Tucson, Arizona), 602/480/623 (Phoenix, Arizona) and 702/725 (Las Vegas, Nevada), measured between the centres of each area.
Who called me from a 928 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 928 a scam?
928 is a real Arizona 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.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.