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area code

Biggest city:




New York

Eastern (GMT -5)

Nearby area codes: 

Zip codes



Major Cities:

Brentwood, West Babylon, Coram, Commack, Central Islip, Huntington Station, Centereach, West Islip, Deer Park, Lindenhurst, Holbrook, Smithtown, Bay Shore, Medford, Copiague, East Patchogue, Hauppauge, East Northport.


Average Income:





Unemployment Rate:

The 631 area code is an important part of New York's telecommunications network, serving a specific region of the state and playing a crucial role in connecting its communities. Serving Suffolk County on Long Island: Established in 1999 as a split from the 516 area code, the 631 area code covers Suffolk County on Long Island, New York. This includes towns and cities such as Huntington, Southampton, and Riverhead. The 631 area code is essential for linking various communities within this region, facilitating communication across a mix of suburban areas, beachfront communities, and rural landscapes. Supporting a Diverse and Dynamic Population: The area served by the 631 area code is known for its diverse economy, including sectors like technology, healthcare, and tourism. Suffolk County boasts a range of attractions, from the Hamptons' upscale beach communities to the agricultural areas on the North Fork. The 631 area code supports the high volume of communication required by these industries and the region's residents. Adapting to Population Growth and Technological Changes: The introduction of the 631 area code was a response to the growing need for phone numbers in Suffolk County. As the region continues to grow and evolve, the telecommunications infrastructure, including the 631 area code, plays a crucial role in supporting its residents and businesses. The 631 area code represents the unique characteristics of Suffolk County on Long Island, playing a crucial role in connecting its suburban, rural, and beachfront communities, and supporting the region's economic and social activities.
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