Area Code 603 New Hampshire, USA

WhereCall is here to provide you with the most information on the area code 603, located in New Hampshire, USA. This area code contains 712 prefixes and is not in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.


NPA Information
Area Code (NPA)603
NPA StatusActive
LocationNew Hampshire, USA
In Jeopardy?No
Is Assigned?Yes
Assignment Date01 Jan 1947
In Service?Yes
In Service Date01 Jan 1947
OverlayNo
Predominant Timezone(s)UTC-05:00
Reverse Phone Lookup »