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 …

2 days ago · 603 Area Code located in New Hampshire, including 163 cities, 10 counties, 1 time zone, map, Census demographics, and 729 active prefixes.

Find 603 area code details including city, time zone, and map. Lookup area code 603 phone number, name, and location.

About area code 603: location, common spam callers, related area codes, and more. Includes 603 reverse phone lookup to identify spam callers.

Browse area code 603 phone numbers, prefixes and exchanges. The 603 area code serves Manchester, Hooksett, Portsmouth, Merrimack, Derry, covering 145 ZIP codes in 15 counties.

Area code 603 is located in New Hampshire. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.

Mar 9, 2025 · Find out where 603 area code zone from, which states, counties and cities it covers. Get the most exact information on time zones here

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 794,512 individuals near the cities of Manchester, …

The 603 area code is a telephone area code serving all of New Hampshire. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 603 area code) below and …

List of ZIP Codes in Area Code 603 ... List of Counties in Area Code 603 ... List of Major Cities/Towns in Area Code 603