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Area code 603 is the sole area code for New Hampshire in the North American Numbering Plan. Learn about its history, ten-digit dialing, central office prefixes and more.
3 dni temu · 603 is an area code in New Hampshire, US, serving Manchester, Nashua, Concord and other cities. It lies within the Eastern Time zone and observes daylight saving time from March to November.
Find out the cities, ZIP codes, and carriers served by area code 603 in New Hampshire. Learn about the history, dialing pattern, and usage type of this general purpose code.
Find out the location, time zone, and carrier information of phone numbers with area code 603 in New Hampshire. See the list of cities, zip codes, and prefixes in area code 603 and how to dial them.
1 paź 2024 · Find out the state, counties, cities, population, time zone, and prefixes of the 603 area code in New Hampshire. See the map, the list of covered areas, and the current local time for each time zone.
Area code 603 is an area code for New Hampshire, created in 1947 and covering the entire state. Learn more about its history, location and categories on Wikipedia.
Find out which cities and counties in New Hampshire use the 603 area code for dialing and telecommunication purposes. Learn about the time zone, population and related NPA codes of the 603 area code.
