Area codes 631 and 934 are the telephone area codes in the North American Numbering Plan (NANP) for Suffolk County, New York, on Long Island. Area code 631 was created in 1999 in a split of 516 and 934 was added as an overlay in 2016.

Browse area code 631 phone numbers, prefixes and exchanges. The 631 area code serves New York, Farmingdale, New Hyde Park, Syosset, Westbury, covering 52 ZIP codes in 6 counties.

The 631 Area Code is located in the state of New York. Area Code 631 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 7,759,159 unique phone numbers and 797,467 individuals near the cities of Brentwood, Huntington, and Farmingdale.

Find 631 area code details including city, time zone, and map. Lookup area code 631 phone number, name, and location.

Apr 1, 2025 · 631 Area Code located in New York, including 78 cities, 2 counties, 1 time zone, map, Census demographics, and 757 active prefixes.

Apr 6, 2025 · 631 is an area code located in the state of New York, US. The largest city it serves is Brentwood. Location, time zone and map of the 631 area code

About area code 631: location, common spam callers, related area codes, and more. Includes 631 reverse phone lookup to identify spam callers.

Mar 25, 2025 · Area code 631 can be found in New York servicing Suffolk County, the central and eastern part of Long Island. Area code 631 was put into service on November 1, 1999, and was created from a split of area code 516. In 2016, area code 631 was overlaid with area code 934.

Lookup information on Area Code 631 - get demographic, NPA NXX, and other data by area code

Area codes 631 and 934 are area codes for New York. Area code 631 was created on November 1, 1997, as a split from area code 516. It covers most of Suffolk County on Long Island, such as Brookhaven, Huntington, Islip, Babylon, Smithtown, and Riverhead. It …