New Hampshire Area Codes
Data last updated: March 10, 2026
Area Codes in New Hampshire
| NPA | Major Cities | Status | Exchanges | Overlay |
|---|---|---|---|---|
| 603 | Manchester, Portsmouth, Derry | Active | 784 | No |
Top Carriers in New Hampshire
| Carrier | OCN | NXX Count |
|---|---|---|
| CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | 5113 | 248 |
| BELL ATLANTIC MOBILE, INC | 6386 | 74 |
| PAETEC ITEL, LLC | 829J | 58 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH | 7778 | 44 |
| COMCAST IP PHONE, LLC | 318J | 40 |
| OMNIPOINT MIAMI E LICENSE, LLC | 6889 | 38 |
| LEVEL 3 COMMUNICATIONS, LLC - NH | 4017 | 37 |
| UNITED STATES CELLULAR - NH | 6290 | 37 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 34 |
| FREEDOM RING COMMUNICATIONS, LLC | 8468 | 32 |