A quick summary of locations in the 631 area code.
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- Harrietta, Michigan (1)
- Amagansett, New York (7)
- Babylon, New York (1)
- Bay Shore, New York (2)
- Bellport, New York (2)
- Bohemia, New York (2)
- Brentwood, New York (1)
- Bridgehampton, New York (1)
- Brookhaven, New York (1)
- Calverton, New York (1)
- Centereach, New York (1)
- Centerport, New York (2)
- Cold Spring Harbor, New York (1)
- Commack, New York (4)
- Copiague, New York (2)
- Cutchogue, New York (4)
- East Hampton, New York (7)
- East Islip, New York (1)
- East Marion, New York (3)
- East Moriches, New York (1)
- Eastport, New York (2)
- East Quogue, New York (2)
- Ellenville, New York (1)
- Farmingdale, New York (2)
- Farmingville, New York (1)
- Greenport, New York (8)
- Hampton Bays, New York (9)
- Hauppauge, New York (5)
- Holbrook, New York (1)
- Holtsville, New York (2)
- Huntington, New York (1)
- Huntington Station, New York (3)
- Islandia, New York (2)
- Jamesport, New York (2)
- Kings Park, New York (1)
- Lindenhurst, New York (1)
- Mastic Beach, New York (1)
- Medford, New York (2)
- Melville, New York (2)
- Middle Island, New York (1)
- Montauk, New York (24)
- Ocean Beach, New York (3)
- Orient, New York (1)
- Patchogue, New York (1)
- Peconic, New York (1)
- Port Jefferson, New York (6)
- Port Jefferson Station, New York (1)
- Quogue, New York (2)
- Raquette Lake, New York (1)
- Riverhead, New York (7)
- Ronkonkoma, New York (4)
- Sag Harbor, New York (3)
- Saint James, New York (1)
- Sayville, New York (2)
- Shelter Island, New York (4)
- Shelter Island Heights, New York (3)
- Shirley, New York (4)
- Smithtown, New York (4)
- Southampton, New York (15)
- South Jamesport, New York (1)
- Southold, New York (4)
- Speculator, New York (1)
- Stony Brook, New York (1)
- Terryville, New York (1)
- Ulster Park, New York (1)
- Virgil, New York (1)
- Wading River, New York (3)
- Wainscott, New York (2)
- West Babylon, New York (2)
- Westhampton, New York (3)
- Westhampton Beach, New York (5)
- Woodbury, New York (1)
- Beach Lake, Pennsylvania (1)