Phone numbers in Barnstable, Massachusetts
Barnstable has 25 phone prefixes in area codes 508, 774.
Biggest holders: T-Mobile (including Sprint), AT&T Mobility, Verizon (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 68%
- Local phone company 8%
- Internet / business phone carrier 20%
- Phone company 4%
Every prefix in Barnstable
Search the first six digits of a number in this list. If it's here, the number started in Barnstable with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 508-260 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 508-362 | Verizon (local phone) | Local phone company | – |
| 508-364 | AT&T Mobility | Mobile carrier | – |
| 508-367 | AT&T Mobility | Mobile carrier | – |
| 508-375 | Verizon (local phone) | Local phone company | – |
| 508-437 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 508-685 | T-Mobile (including Sprint) | Mobile carrier | – |
| 508-744 | Tc Systems | Phone company | – |
| 774-208 | AT&T Mobility | Mobile carrier | 2001 |
| 774-251 | AT&T Mobility | Mobile carrier | 2002 |
| 774-330 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 774-339 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 774-433 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 774-464 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 774-476 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 774-534 | AT&T Mobility | Mobile carrier | 2015 |
| 774-543 | T-Mobile (including Sprint) | Mobile carrier | – |
| 774-559 | Peerless Network Of Massachusetts | Internet / business phone carrier | 2016 |
| 774-564 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 774-587 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 774-623 | TON80 Communications | Internet / business phone carrier | 2021 |
| 774-625 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 774-789 | Fractel | Internet / business phone carrier | 2021 |
| 774-994 | Verizon Wireless | Mobile carrier | 2001 |
| 774-998 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
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.