Area code 603

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 October 1947.

As of April 2011, area code 603 was nearing exhaustion and a second area code for New Hampshire was expected to be activated by 2013. Rather than a split, the New Hampshire Public Utilities Commission recommended that it be implemented as a statewide overlay plan.[1] As a result of changes in allocation policies and a reclamation of a large block of previously allocated telephone numbers, including number pooling, the exhaustion time frame has been moved to at least 2032.[2]

Since New Hampshire has only one area code, callers in the state can reach any other telephone within the numbering plan area by seven-digit dialing.

Area code 603, covering the whole state.


  1. ^ "Archived copy". Archived from the original on September 29, 2011. Retrieved November 20, 2010.CS1 maint: Archived copy as title (link)
  2. ^ Dave Brooks (18 May 2016). "Area code 603 will reign supreme thanks to technology". The Concord Monitor. Retrieved 17 March 2019.

External links

New Hampshire area codes: 603
North: 819
West: 802 area code 603 East: 207
South: 351/978, 413
Massachusetts area codes: 339/781, 351/978, 413, 508/774, 617/857
Maine area codes: 207
Quebec area codes: 418/581, 438/514, 450/579, 819
Vermont area codes: 802
603 (disambiguation)

603 may refer to:

603 (number), the natural number following 602 and preceding 604

A year: 603 CE or 603 BCE

The North American telephone area code 603

The US state of New Hampshire, which solely uses the 603 area code.

The IBM 603 Electronic Multiplier

The PowerPC 603 microprocessor

The socket 603 motherboard socket for the Intel Xeon microprocessor

Minor planet 603, named Timandra

The Tatra 603 automobile

The Bristol 603 automobile

The Daimler-Benz DB 603 aircraft engine

The Mercedes-Benz OM603 diesel engine

The large number 10603, known as ducentillion (USA and modern British) or thousand centillion (traditional British) or centilliard (traditional European)

Amherst, New Hampshire

Amherst is a town in Hillsborough County in the state of New Hampshire, United States. The population was 11,201 at the 2010 census. Amherst is home to Ponemah Bog Wildlife Sanctuary, Hodgman State Forest, the Joe English Reservation and Baboosic Lake.

The town center village, where 613 people resided at the 2010 census, is defined as the Amherst census-designated place. The village is also listed on the National Register of Historic Places as Amherst Village Historic District.

Bedford, New Hampshire

Bedford is a town in Hillsborough County, New Hampshire, United States. The population was 21,203 at the 2010 census and an estimated 22,458 in 2017. Bedford is a suburb of Manchester, the largest city in the state of New Hampshire.

Henniker, New Hampshire

Henniker is a town in Merrimack County, New Hampshire, United States. As of the 2010 census, the town had a total population of 4,836. Henniker is home to New England College and Pats Peak Ski Area. Henniker is a college town and resort area, featuring both skiing and white-water kayaking.

The main village of the town, where 1,747 people resided at the 2010 census, is defined as the Henniker census-designated place (CDP), and is located along the Contoocook River at the junction of New Hampshire Route 114 with Old Concord Road. The town also includes the village of West Henniker.

Washington, New Hampshire

Washington is a town in Sullivan County, New Hampshire, United States. The population was 1,123 at the 2010 census. Situated in a hilly, rocky, forested area, and with 26 lakes and ponds, Washington is a picturesque resort area. It is home to Pillsbury State Park.

United States

This page is based on a Wikipedia article written by authors (here).
Text is available under the CC BY-SA 3.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.