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Area code 603. Area code 603 in a 1956 map, covering the whole state. 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 1947.
1 dzień temu · 603 is an area code located in the state of New Hampshire, US. The largest city it serves is Manchester. Location, time zone and map of the 603 area code
Find 603 area code details including city, time zone, and map. Lookup area code 603 phone number, name, and location.
603 Area code map Where is the area code 603 located in New Hampshire, United States? Area Code 603 coverage is shown in green.
1 paź 2024 · 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, Rockingham County, Grafton County, Merrimack County, and Strafford County.
Area code 603 is located in New Hampshire and includes Manchester. View the 603 area code map, major cities, location, timezone and more on TeraCodes.com.
Lookup information on Area Code 603 - get demographic, NPA NXX, and other data by area code
