Phone numbers in Charlton, Massachusetts
Charlton has 7 phone prefixes in area codes 508, 774.
Biggest holders: Windstream (PAETEC), Onvoy, Verizon (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 14%
- Internet / business phone carrier 86%
Every prefix in Charlton
Search the first six digits of a number in this list. If it's here, the number started in Charlton with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 508-248 | Verizon (local phone) | Local phone company | – |
| 508-434 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 508-462 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 508-784 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 508-980 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 774-224 | Onvoy | Internet / business phone carrier | – |
| 774-724 | Onvoy | Internet / business phone carrier | 2021 |
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.