Phone numbers in Madison, Georgia
Madison has 14 phone prefixes in area codes 706, 762.
Biggest holders: AT&T (local phone), Onvoy, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 29%
- Local phone company 21%
- Internet / business phone carrier 43%
- Phone company 7%
Every prefix in Madison
Search the first six digits of a number in this list. If it's here, the number started in Madison with the carrier shown. If it isn't, check the Georgia page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 706-342 | AT&T (local phone) | Local phone company | – |
| 706-343 | AT&T (local phone) | Local phone company | – |
| 706-431 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 706-438 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 706-474 | AT&T Mobility | Mobile carrier | 2001 |
| 706-688 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 706-707 | Onvoy | Internet / business phone carrier | – |
| 706-719 | AT&T Mobility | Mobile carrier | – |
| 706-752 | AT&T (local phone) | Local phone company | – |
| 706-818 | Verizon Wireless | Mobile carrier | 2003 |
| 706-997 | Broadriver Communication | Phone company | 2003 |
| 762-205 | Onvoy | Internet / business phone carrier | 2023 |
| 762-366 | Onvoy | Internet / business phone carrier | 2020 |
| 762-998 | Verizon Wireless | Mobile carrier | 2024 |
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.