Michigan · Eastern Time
810 Area Code
Area code 810 is in Michigan, serving eastern Michigan including Flint, Port Huron and the Thumb area. It is in the Eastern Time zone.
Last updated October 1, 2026 · Source: NANPA
Where is the 810 area code?
810 is a Michigan area code covering eastern Michigan including Flint, Port Huron and the Thumb area. In the wider directory it sits in the Midwest region.
Cities in the 810 area code
- Flint
- Port Huron
- Burton
- Grand Blanc
- Fenton
- Lapeer
- Davison
- Flushing
- Brighton
- Swartz Creek
- Marysville
- Imlay City
Counties served by 810
Genesee County, St. Clair County, Lapeer County, Livingston County and Sanilac County.
Time zone note: Eastern statewide except four Upper Peninsula counties near Wisconsin (Central).
Dialing 810
Flint, MI is currently served by the single area code 810, with no overlay. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.
From outside the US, dial +1 810 followed by the seven-digit number.
History of the 810 area code
810 went into service on December 1, 1993, created when it was split from 313. It serves Flint and the surrounding part of Michigan. For how codes are created, split, and overlaid, see how area codes work.
Is 810 a scam or spam risk?
810 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 810 number on your screen is no guarantee the caller is in Flint, MI or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Michigan area codes
Explore more
See every code in Michigan, compare codes across the Midwest region, or view all Eastern Time codes. You can also browse the 8XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
810 area code FAQ
Where is the 810 area code?
The 810 area code is in Michigan, covering eastern Michigan including Flint, Port Huron and the Thumb area, in the Midwest region.
What cities are in the 810 area code?
Cities in the 810 area code include Flint, Port Huron, Burton, Grand Blanc, Fenton, Lapeer, Davison, Flushing, Brighton and Swartz Creek.
What time zone is 810 in?
810 is in the Eastern Time zone. Eastern statewide except four Upper Peninsula counties near Wisconsin (Central).
When did the 810 area code start?
810 went into service on December 1, 1993.
Do I have to dial 10 digits for 810?
Ten-digit dialing always works, and many areas now require it; some local calls in this area may still connect with seven digits.
Is 810 a toll-free or premium code?
No. 810 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.