– phone area 603-278
📌Jefferson, NH
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Area code 603-278 is assigned to Jefferson, NH.

Main city: Jefferson
Timezone: Eastern
Phone type: Landline
Operator: Bretton Woods Telephone Co.

Jefferson, a town in Coos County, New Hampshire, United States. The population was 1,107 at the 2010 census. It is home to parts of the White Mountain National Forest in the south and northeast and to two theme parks: Santa's Village and Six Gun City. There are also several private campgrounds, motels and inns. source

Area code 603 is the sole area code for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). The numbering plan area (NPA) was created as one of the original area codes in October 1947. source

Phone number full length is 10 digits: (603) 278-xxxx

International format length is 11 digits: +1 (603) 278-xxxx

Number can be also written as: 603-278, 603278, +1-603-278

Most requested numbers in the neighborhood:
603-278-0459, 603-278-6759, 603-278-0584, 603-278-3294, 603-278-3886