Area code 810 – Michigan
810 has served Michigan since 1993, split from 313. 509 of its 786 number blocks are allocated (65%). AT&T is the largest holder with 36.7% of blocks, ahead of Other CLEC / VoIP at 16.7%. 706 FTC complaints named a 810 caller ID in the 33 days to 30 October 2026, putting it 128th of 422 codes with five or more complaints.
- State
- Michigan
- In service since
- 1993
- Time zone
- Eastern
- Shares area with
- No overlay
Who holds 810 number blocks
Share of the 509 assigned NXX blocks (64.8% of the 786 possible), across 37 carriers. This is share of number blocks, not of subscribers.
- AT&T36.7%
- Verizon13.9%
- T-Mobile11%
- Other CLEC / VoIP9.6%
- Lumen5.5%
- Frontier5.3%
- Onvoy4.5%
- Windstream3.7%
- American Messaging2.8%
- Bandwidth1.4%
- Charter1.4%
- Spok1%
- Comcast1%
- Peerless0.8%
- Brightspeed0.8%
- VoIP Innovations0.2%
- Dish0.2%
- TPx0.2%
Spam complaints naming 810
FTC Do Not Call complaints where the caller ID was a 810 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.
Rate centers in 810
NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 50.
Timeline
- 1993 810 goes into service, split from or overlaid on 313.
More about 810
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 810
What state is area code 810?
Michigan.
Is a call from 810 a scam?
Not by itself. 810 drew 706 FTC complaints in the 33 days to 30 October 2026, 128th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.
Which carrier owns 810 numbers?
AT&T holds the largest share of assigned number blocks at 36.7%. The rest is spread across 3 other carriers. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.
Do I need to dial 10 digits in 810?
Yes – ten digits for local calls in 810, because it shares its area with another code.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 25 daily files 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
NANPA dialing note for this code: “10D”. Reviewed by the data desk. Spotted an error? Request a correction.