New Hampshire Area Codes

New Hampshire is a state located in the northeast part of the U.S. called New England. It’s also commonly called “The Granite State” due to the abundance of quarries and granite formations in the area. It’s bordered by Quebec to the north, the Atlantic Ocean and Maine to the east, Massachusetts to the south, and Vermont to the west. It has the shortest ocean coastline, being just 18-mile long, but its home to the resort town of Hampton Beach and four of the nine islands called Isles of Shoals.

The state has a population of over 1.3 million people and it’s covered by the 603 area code, which was created in 1947, along with the other 86 original area codes. The area code covers cities such as Manchester (the largest city in the state with over 114,000 people), Nashua, and Concord, which is the capital. It also covers 10 counties including Strafford, Merrimack, and Hillsborough. As the state has only one area code, callers can reach other people in the state with seven-digit dialing.

New Hampshire is the ninth least populous state in the country; however, in 2011 the area code 603 was nearly exhausted due to population growth, 64 years after its implementation. There were plans to add a second area code or to implement an overlay in 2013, but the state used a method called number pooling to relieve the area, which reallocates phone numbers more efficiently and reduces the quantity of wasted numbers. With these changes, the area code 603 shouldn’t exhaust until 2025. Check out the infographic below to learn more about New Hampshire area code.

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