Area codes 631 and 934
Area codes 631 and 934 are the telephone area codes for Suffolk County, New York, the central and eastern part of Long Island. Area code 631 was created in 1999 as a split from area code 516, and 934 was added as an overlay in 2016. Population centers within the plan area include Babylon, Brookhaven, Huntington, Patchogue, Riverhead, Smithtown, Shelter Island, and The Hamptons.
History of Suffolk County area codesEdit
On November 1, 1999, area code 631 was created solely for Suffolk County, to satisfy the increased need for telephone numbers mainly due to cellular services, while Nassau County kept area code 516. Permissive dialing for numbers in 516 across Long Island continued until the spring of 2000.
2016–present: 934 overlayEdit
On July 16, 2016, area code 934 was created to overlay 631, which was nearing exhaustion. This is the first overlay area code for an area in the state of New York outside New York City and requires 10-digit dialing for both area codes, effective June 18, 2016.
- "NANP Area Code History: 1948–1959". Area Code History. Archived from the original on September 11, 2002. Retrieved November 4, 2018.
- Rather, John (October 31, 1999). "Suffolk County Gears Up for 631 Area Code". The New York Times. Retrieved November 4, 2018.
- Kitchen, Patricia. "Area code countdown: Suffolk 10-digit dialing begins in June". Newsday. May 14, 2016.
|New York area codes: 212/332/646, 315/680, 347/718/929, 516, 518/838, 585, 607, 631/934, 716, 845, 914, 917|
|North: 203, 401, 860, 959|
|West: 516||area code 631/934||East: Atlantic Ocean|
|South: Atlantic Ocean|
|Connecticut area codes: 203/475, 860/959|
|Rhode Island area codes: 401|
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