Phone numbers in Nantucket, Massachusetts
Nantucket has 14 phone prefixes in area codes 508, 774.
Biggest holders: Verizon (local phone), Verizon Wireless, T-Mobile (including Sprint). 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 36%
- Phone company 14%
Every prefix in Nantucket
Search the first six digits of a number in this list. If it's here, the number started in Nantucket with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 508-221 | Verizon Wireless | Mobile carrier | – |
| 508-228 | Verizon (local phone) | Local phone company | – |
| 508-325 | Verizon (local phone) | Local phone company | – |
| 508-332 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 508-374 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 508-680 | Verizon Wireless | Mobile carrier | – |
| 508-716 | Norfolk County Internet | Phone company | – |
| 508-825 | Verizon (local phone) | Local phone company | – |
| 508-901 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 774-236 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 774-325 | Bandwidth | Internet / business phone carrier | 2010 |
| 774-333 | Tc Systems | Phone company | 2001 |
| 774-382 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 774-485 | 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.