Area code 603 - Wikipedia
Area code 603 is the sole area code for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). It was created as one of the original 86 numbering plan areas in October …
603 Area Code - Location, Time, Map, Cities and Census Data
2 days ago · Area Code 603 is located in New Hampshire. It covers 163 cities, including Manchester, Nashua, Concord, Dover, and Rochester. It also covers 10 counties, including Hillsborough County, …
603 area code — information, time zone, map
Mar 9, 2025 · 603 is an area code located in the state of New Hampshire, US. The largest city it serves is Manchester. Find out where 603 area code zone from, which states, counties and cities it covers. …
603 Area Code - Map, Phone Lookup, Time Zone - Wirefly
Find 603 area code details including city, time zone, and map. Lookup area code 603 phone number, name, and location.
603 Area Code - Location, Map, Current Time, Prefixes
Area code 603 is located in New Hampshire. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
603 Area Code: Complete Location Info, Time Zone
Nov 22, 2025 · Area code 603 is in New Hampshire, USA , spanning 10 counties and serving 257 cities , including Manchester, Nashua or Concord; it currently uses 752 prefixes , assigned from 603-200 …
Area Code 603 - Map, time zone, and phone lookup - CallerCenter
About area code 603: location, common spam callers, related area codes, and more. Includes 603 reverse phone lookup to identify spam callers.
Where Is The 603 Area Code Located? City Guide | State | Location
Area code 603 is the area code for the entire state of New Hampshire. Created as one of the original area codes, area code 603 was put into service on January 1, 1947. Area code 603 is located in the …
603 Area Code, Where is Area Code 603? - usacitymap.com
Area code 603 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of New Hampshire. Below you will find more info about Code and also zip codes, counties, …
603 Area Code ☎️ Location, Time Zone, & Phone Lookup - Spokeo
The 603 Area Code is located in the state of New Hampshire. Area Code 603 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 7,519,512 unique phone numbers and …