Main city: Manchester
Timezone: Eastern
Phone type: Cell Number
Operator: No New England Tel Op DBA Fairpoint Comm

Manchester, the largest city in the U.S. state of New Hampshire, the tenth largest city in New England, and the largest city in northern New England, an area comprising the states of Maine, New Hampshire, and Vermont. It was first named by the merchant and inventor Samuel Blodget (after whom the Samuel Blodget Park in Manchester North is named). Blodget's vision was to create a great industrial center similar to that of Manchester in England, which was the world's first industrialized city. It is in Hillsborough County along the banks of the Merrimack River, which divides the city into eastern and western sections. Manchester is near the northern end of the Northeast megalopolis. As of the 2010 census, the city had a population of 109,565, and its 2012 population estimate was 110,209. The Manchester-Nashua metropolitan area, with an estimated population in 2012 of 402,922, is home to nearly one-third of the population of New Hampshire. ^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