Area Code 631


Country United States
State/Province New York 
Major City Brentwood 
Easy URL areacode.org/631 

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631 Area Code

AreaCode.org is an area code finder with detailed information on the 631 area code including 631 area code map.

Major cities like Babylon within area code 631 are also listed on this page. More area codes, including those outside of New York, are found on the AreaCode.org homepage.

Some telephone area codes are overlaid, requiring 10-digit dialing. AreaCode.org is your one-stop site for area code lookup, area code search, and area code locator.


Area Code 631 Detail

Area code 631 serves Suffolk County in Long Island, New York. It was created in 1999.

631 Area Code Location
Major Cities County State/Province
Babylon  Suffolk  NY 
Brentwood  Suffolk  NY 
Brookhaven  Suffolk  NY 
Other Cities By Name
Amagansett  Suffolk  NY 
Amityville  Suffolk  NY 
Bayport  Suffolk  NY 
Bay Shore  Suffolk  NY 
Bellport  Suffolk  NY 
Center Moriches  Suffolk  NY 
Central Islip  Suffolk  NY 
Cold Spring Harbor  Suffolk  NY 
Commack  Suffolk  NY 
Deer Park  Suffolk  NY 
East Hampton  Suffolk  NY 
Eastport  Suffolk  NY 
Farmingdale  Nassau  NY 
Fire Island  Suffolk  NY 
Fishers Island  Suffolk  NY 
Greenport  Suffolk  NY 
Hampton Bays  Suffolk  NY 
Huntington  Suffolk  NY 
Islip  Suffolk  NY 
Jamesport  Suffolk  NY 
Kings Park  Suffolk  NY 
Lindenhurst  Suffolk  NY 
Mattituck  Suffolk  NY 
Nassau  Rensselaer  NY 
Northport  Suffolk  NY 
Orient  Suffolk  NY 
Patchogue  Suffolk  NY 
Peconic  Suffolk  NY 
Port Jefferson  Suffolk  NY 
Quogue  Suffolk  NY 
Riverhead  Suffolk  NY 
Ronkonkoma  Suffolk  NY 
Sag Harbor  Suffolk  NY 
Sayville  Suffolk  NY 
Selden  Suffolk  NY 
Shelter Island  Suffolk  NY 
Shoreham  Suffolk  NY 
Smithtown  Suffolk  NY 
Southold  Suffolk  NY 
St. James  Suffolk  NY 
Stony Brook  Suffolk  NY 
Wading River  Suffolk  NY 
Water Mill  Suffolk  NY 
West Commack  Suffolk  NY 
Westhampton  Suffolk  NY 
Yaphank  Suffolk  NY 


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