Phone numbers in Hollis, New Hampshire
Hollis has 3 phone prefixes in area code 603.
Biggest holders: MetroPCS (T-Mobile), Charter / Spectrum, Hollis Telephone. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Internet / business phone carrier 33%
Every prefix in Hollis
Search the first six digits of a number in this list. If it's here, the number started in Hollis with the carrier shown. If it isn't, check the New Hampshire page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 603-258 | MetroPCS (T-Mobile) | Mobile carrier | 2017 |
| 603-400 | Charter / Spectrum | Internet / business phone carrier | 2011 |
| 603-465 | Hollis Telephone | Local phone company | – |
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.