Area Code 603 - Manchester, NH

Below is the information for Area Code 603
General Information for Area Code 603
Country United States
State/Province New Hampshire
Major City Manchester
Time Zone Eastern (UTC-05:00)

Phone directory of numbers beginning with Area Code 603 Prefixes

Prefix Primary City County Phone Type
603-373 Portsmouth, NH Rockingham Landline
603-374 Bartlett, NH Carroll Landline
603-375 Ashland, NH Grafton Landline
603-376 Dover, NH Strafford Cell Number
603-377 Merrimack, NH Hillsborough Cell Number
603-378 Plaistow, NH Rockingham Landline
603-379 Rye, NH Rockingham Landline
603-380 Portsmouth, NH Rockingham Cell Number
603-381 W Lebanon, NH Grafton Cell Number
603-382 Plaistow, NH Rockingham Landline
603-383 Jackson, NH Carroll Landline
603-384 Manchester, NH Hillsborough Landline
603-385 Manchester, NH Hillsborough Cell Number
603-386 Nashua, NH Hillsborough Landline
603-387 Laconia, NH Belknap Cell Number
603-388 Colebrook, NH Coos Landline
603-389 Durham, NH Strafford Landline
603-390 Jefferson, NH Coos Landline
603-391 Manchester, NH Hillsborough Landline
603-392 Winchester, NH Cheshire Landline
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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
  • and so on.

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