Phone numbers in Cumberland Hill, Rhode Island
Cumberland Hill has 19 phone prefixes in area code 401.
Biggest holders: T-Mobile (including Sprint), Windstream (PAETEC), Comcast. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 74%
- Local phone company 5%
- Internet / business phone carrier 21%
Every prefix in Cumberland Hill
Search the first six digits of a number in this list. If it's here, the number started in Cumberland Hill with the carrier shown. If it isn't, check the Rhode Island page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 401-257 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 401-299 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 401-306 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 401-376 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 401-405 | Comcast | Internet / business phone carrier | – |
| 401-416 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 401-425 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 401-426 | T-Mobile (including Sprint) | Mobile carrier | 2010 |
| 401-492 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 401-538 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 401-540 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 401-564 | T-Mobile (including Sprint) | Mobile carrier | – |
| 401-658 | Verizon (local phone) | Local phone company | – |
| 401-659 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 401-660 | T-Mobile (including Sprint) | Mobile carrier | – |
| 401-666 | Peerless Network Of Rhode Island | Internet / business phone carrier | 2016 |
| 401-692 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 401-744 | T-Mobile (including Sprint) | Mobile carrier | – |
| 401-999 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
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.