603 area code
Get a local phone number in Manchester, NH
Biggest city:
Manchester
State:
New Hampshire
Major Cities:
Manchester, Nashua, Concord, Derry, Rochester.
Timezone:
Eastern (GMT -5)
Population:
112,525
Average Income:
$83,913
Zip codes:
3101
3109
Unemployment Rate:
2.30%
Nearby area codes:
207
351
603 area code summary
Area code 603 covers the entire state of New Hampshire. As one of the original area codes established in 1947, it remains the only area code for the Granite State. It includes cities such as Manchester, Nashua, Concord, and Portsmouth. Despite being a small state, New Hampshire offers a diverse economy with strengths in manufacturing, healthcare, tourism, and education. Manchester is the largest city and a growing hub for tech and innovation, while Nashua maintains close economic ties to the Greater Boston area. Concord is the state capital, and Portsmouth is known for its historic charm and coastal access. New Hampshire is recognized for its high quality of life, no state income tax, and strong civic culture. A 603 number signifies state-wide recognition and trust, making it highly desirable for small businesses, healthcare providers, and professionals who want broad regional appeal in New England.
Fun fact 💡
Manchester’s Millyard Museum, since 1975, preserves 603 history.
🏢First Phone Company:
New England Telephone (later Verizon)
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