New Hampshire Area Codes
Here is the current list of area codes in the state of New Hampshire. There are 142 area codes in New Hampshire that are currently being used. Find out all New Hampshire area codes below by searching each of the cities below. We have the most up-to-date list of area codes in New Hampshire.
| Area Code | State | City | Timezone |
|---|---|---|---|
| 603 | New Hampshire | Hampton | Eastern |
| 603 | New Hampshire | Milton Mills | Eastern |
| 603 | New Hampshire | Contoocook | Eastern |
| 603 | New Hampshire | Henniker | Eastern |
| 603 | New Hampshire | Littleton | Eastern |
| 603 | New Hampshire | Woodsville | Eastern |
| 603 | New Hampshire | Concord | Eastern |
| 603 | New Hampshire | Newbury | Eastern |
| 603 | New Hampshire | Rochester | Eastern |
| 603 | New Hampshire | Colebrook | Eastern |
| 603 | New Hampshire | Jaffrey | Eastern |
| 603 | New Hampshire | Charlestown | Eastern |
| 603 | New Hampshire | Belmont | Eastern |
| 603 | New Hampshire | Hinsdale | Eastern |
| 603 | New Hampshire | Dover | Eastern |
| 603 | New Hampshire | Claremont | Eastern |
| 603 | New Hampshire | Seabrook | Eastern |
| 603 | New Hampshire | New London | Eastern |
| 603 | New Hampshire | Chichester | Eastern |
| 603 | New Hampshire | Lyme | Eastern |
| 603 | New Hampshire | Bow | Eastern |
| 603 | New Hampshire | Orford | Eastern |
| 603 | New Hampshire | Monroe | Eastern |
| 603 | New Hampshire | Epsom | Eastern |
| 603 | New Hampshire | Newport | Eastern |