📌Hillsboro, NH
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Area code 603-478 is assigned to Hillsboro, NH.
Main city: Hillsboro
Timezone: Eastern
Phone type: Landline
Operator: Granite State Telephone
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
Timezone: Eastern
Phone type: Landline
Operator: Granite State Telephone
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) 478-xxxx
International format length is 11 digits: +1 (603) 478-xxxx
Number can be also written as: 603-478, 603478, +1-603-478
Most requested numbers in the neighborhood:
603-478-2064, 603-478-5940, 603-478-7474, 603-478-4336, 603-478-0259