New Hampshire phone numbers and area codes
New Hampshire has 1 area code and 752 assigned prefixes.
Look at a prefix's carrier mix below, or look up a full number on the home page.
- Mobile carrier 26%
- Local phone company 34%
- Internet / business phone carrier 31%
- Phone company 9%
Area codes in New Hampshire
| Code | Area | Prefixes here |
|---|---|---|
| 603 | New Hampshire (all) | 752 |
Biggest local calling areas
Numbers are assigned to rate centers. These have the most prefixes in New Hampshire (the number is how many).
Manchester80Nashua58Concord39Derry29Dover29Portsmouth28Merrimack23Salem20Laconia19Keene17Rochester16Exeter15Milford11Plymouth10Suncook9West Lebanon8Hanover8Claremont8Lebanon8Hampton8Plaistow7Durham7Berlin6Littleton6Meredith6Bedford6North Woodstock6Peterborough6Raymond5North Conway5Newport5Sunapee5Lancaster5Colebrook4Woodsville4New Boston4Tilton4Ctrossipee4Hampstead4Goffstown4Conway4Seabrook4Newmarket3Lyme3Bristol3Campton3Wchestefld3Hollis3South Hampton3Barrington3Canaan3Milan3Tamworth3Kingston3Orford3Candia3Rye Beach3Somersworth3Deerfield3Pelham3Wolfeboro3Jaffrey3Greenfield3Pike3Epping3Danbury3
Carriers in New Hampshire
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| Consolidated Comm Of No. New England-nh | Local phone company | 246 | 33% |
| Bell Atlantic Mobile | Mobile carrier | 74 | 10% |
| Windstream (PAETEC) | Internet / business phone carrier | 58 | 8% |
| MCImetro (Verizon Business) | Internet / business phone carrier | 45 | 6% |
| Comcast | Internet / business phone carrier | 40 | 5% |
| T-Mobile (including Sprint) | Mobile carrier | 38 | 5% |
| UScellular | Mobile carrier | 37 | 5% |
| Level 3 (Lumen) | Internet / business phone carrier | 37 | 5% |
| AT&T Mobility | Mobile carrier | 34 | 5% |
| Freedom Ring Communications | Phone company | 32 | 4% |
| MetroPCS (T-Mobile) | Mobile carrier | 12 | 2% |
| Teleport Communications America | Internet / business phone carrier | 8 | 1% |
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.