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 …
603 Area Code - Location map, time zone, and phone lookup
Where is area code 603? Area code 603 covers the entire state of New Hampshire. It is the only area code that serves the area.
Area Code 603 phone numbers - Whitepages
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.
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 …
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.
Area Code 603 Reverse Lookup - New Hampshire | ThisNumber
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 …
603 Area Code - Reverse Phone Lookup in NH - USPhoneBook
Where is Area Code 603? Area code (603) is in the state of NH. Below, are the major cities in the area code (603).
603 Area Code, New Hampshire, United States - Location map, …
Area code 603 is the sole area code for the entire state of New Hampshire.
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 …
603 Area Code - National Phone Number Registry
Dec 9, 2025 · Area code 603 is located in New Hampshire. Get area code location and dialing plans for all phone prefixes in area code 603.