Phone numbers in Southgate, Massachusetts
Southgate has 6 phone prefixes in area codes 508, 774.
Biggest holders: Verizon (local phone), Windstream (PAETEC), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 17%
- Local phone company 33%
- Internet / business phone carrier 50%
Every prefix in Southgate
Search the first six digits of a number in this list. If it's here, the number started in Southgate with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 508-399 | Verizon (local phone) | Local phone company | – |
| 508-639 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 508-761 | Verizon (local phone) | Local phone company | – |
| 508-915 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 774-282 | AT&T Mobility | Mobile carrier | 2002 |
| 774-390 | Bandwidth | Internet / business phone carrier | 2019 |
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.