Phone numbers in Peterborough, New Hampshire
Peterborough has 6 phone prefixes in area code 603.
Biggest holders: Windstream (PAETEC), UScellular, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 17%
- Local phone company 17%
- Internet / business phone carrier 50%
- Phone company 17%
Every prefix in Peterborough
Search the first six digits of a number in this list. If it's here, the number started in Peterborough with the carrier shown. If it isn't, check the New Hampshire page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 603-371 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 603-562 | UScellular | Mobile carrier | – |
| 603-567 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 603-784 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 603-924 | Consolidated Comm Of No. New England-nh | Local phone company | – |
| 603-925 | Freedom Ring Communications | 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.