Dover, NH Area Codes
Dover is served by area code 603. It is in New Hampshire, Strafford County. About 33,440 people live in its 3 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 603 |
| State / province | New Hampshire |
| County | Strafford County |
| Population | 33,440 |
| ZIP codes | 3 |
| Time zone | Eastern |
| Coordinates | 43.1941, -70.8770 |
What area code is Dover in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 603 | New Hampshire | 1,394,951 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
Somersworth 603Durham 603Barrington 603Rochester 603Newmarket 603Portsmouth 603Hampton 603Exeter 603
How to dial
Dial 603 + 7 digits for a number in Dover, or +1 603 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.