Phone numbers in Grand Blanc, Michigan
Grand Blanc has 16 phone prefixes in area code 810.
Biggest holders: AT&T (local phone), Teleport Communications America, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 19%
- Local phone company 38%
- Internet / business phone carrier 38%
- Phone company 6%
Every prefix in Grand Blanc
Search the first six digits of a number in this list. If it's here, the number started in Grand Blanc with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 810-254 | Teleport Communications America | Internet / business phone carrier | 2020 |
| 810-344 | MCImetro (Verizon Business) | Internet / business phone carrier | 2005 |
| 810-428 | AT&T Mobility | Mobile carrier | 2017 |
| 810-445 | CenturyLink / Lumen | Local phone company | 2014 |
| 810-495 | Verizon Wireless | Mobile carrier | 2013 |
| 810-498 | AT&T Mobility | Mobile carrier | 2015 |
| 810-579 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 810-584 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 810-603 | AT&T (local phone) | Local phone company | – |
| 810-606 | AT&T (local phone) | Local phone company | – |
| 810-694 | AT&T (local phone) | Local phone company | – |
| 810-695 | AT&T (local phone) | Local phone company | – |
| 810-771 | Grid 4 Communications | Phone company | 2006 |
| 810-799 | Fractel | Internet / business phone carrier | 2021 |
| 810-866 | Teleport Communications America | Internet / business phone carrier | – |
| 810-953 | AT&T (local phone) | Local phone company | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.