Dover, New Hampshire
Eastern Time Zone (UTC-5) · NH · —
About Area Codes in Dover, New Hampshire
Dover, New Hampshire is served by area code 603, which was one of the original area codes established in 1947 under the North American Numbering Plan. The city falls within the Eastern time zone (UTC-5). All calls to and from Dover use the 603 area code prefix for local and long-distance dialing.
Frequently Asked Questions
What area code is Dover, New Hampshire?
Dover, New Hampshire uses area code 603.
What time zone is Dover in?
Dover is in the Eastern time zone (UTC-5).
Do I need to dial 10 digits when calling Dover?
Standard 7-digit dialing is used for local calls within Dover. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 603 created?
Area code 603 is one of the original 86 area codes established in 1947 as part of the North American Numbering Plan (NANP).
What cities share area code 603 with Dover?
Other cities sharing area code 603 with Dover include Amherst, Bedford, Berlin, Claremont, Concord, among others.
Also called Dover:
Dover, NH · Eastern Time Zone