The 810 area code covers Flint, Lapeer and 45 more places in Michigan.
Area code 810 is in Michigan, on Eastern Time. In the 810 area, phone numbers are given out most in Genesee County, then St. Clair and Lapeer counties. It has been in service since December 1, 1993.
- Where
- 7 counties in Michigan, mostly Genesee County, St. Clair County and Lapeer County
- Time zone
- Eastern Time
- In service since
- December 1, 1993
- Shares its area with
- No other area code
- Prefixes in use
- 508
- How to dial
- Local calls need all 10 digits: 810-555-0142.
Find out who called you from an 810 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 (810) number is on today, use our free carrier lookup.
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Flint holds 27% of the phone prefixes in area code 810.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 508 prefixes in use shows where 810 numbers are actually given out.
- Flint139 prefixes, 27%
- Lapeer46 prefixes, 9%
- Port Huron44 prefixes, 9%
- Brighton39 prefixes, 8%
- Grand Blanc16 prefixes, 3%
- Fenton15 prefixes, 3%
- Davison11 prefixes, 2%
- Algonac11 prefixes, 2%
Also served: Sandusky, Marine City, Imlay City and Saint Clair and 35 smaller places.
Michigan Bell (AT&T) holds the most phone number prefixes in area code 810: 86 of 508.
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 508 prefixes in use in 810 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Michigan Bell (AT&T)AT&T's landline company | 86 | 17% |
| AT&T MobilityMobile network | 63 | 12% |
| T-MobileMobile network | 50 | 10% |
| Teleport (AT&T)AT&T's business phone network | 36 | 7% |
| FrontierLandline company | 27 | 5% |
| Level 3 (Lumen)Lumen's business and wholesale network | 25 | 5% |
| 30 other carriers | 221 | 44% |
74% 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.
810 has been split 2 times since 1993.
1993
810 starts on December 1, 1993, split off from 313.
1997
On May 10, 1997, 248 splits off and takes part of the 810 area.
2001
On September 22, 2001, 586 splits off and takes part of the 810 area.
An 810 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 810 are 586, 248 and 313.
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 810.
Where is area code 810?
810 covers Flint, Lapeer, Port Huron and Brighton and 43 more places in Michigan. In the 810 area, phone numbers are given out most in Genesee County, then St. Clair and Lapeer counties.
What state is area code 810 in?
Michigan. 810 is a Michigan area code on Eastern Time.
What cities use area code 810?
The places holding the most 810 prefixes are Flint, Lapeer, Port Huron, Brighton, Grand Blanc, Fenton, Davison and Algonac, out of 47 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 810?
No single phone company owns 810. NANPA's records show Michigan Bell (AT&T) holds the most 810 prefixes, 86 of 508, followed by AT&T Mobility and T-Mobile. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 810 in?
810 is on Eastern Time.
When did area code 810 start?
810 went into service on December 1, 1993, when it was split off from 313.
How do I dial an 810 number?
Local calls need all 10 digits: 810-555-0142.
Is 810 a toll-free number?
No. 810 is a regular area code for Flint and Lapeer in Michigan, 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 810?
The closest are 586 (Mount Clemens, Michigan), 248/947 (Pontiac, Michigan), 313/734/679 (Detroit, Michigan) and 517 (Lansing, Michigan), measured between the centres of each area.
Who called me from an 810 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 810 a scam?
810 is a real Michigan 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.