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Area Code 631Area Code 631 is in New York and covers 923.60 square miles. Area Code 631 contains 95 non-unique postal area zip codes. |
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| Area Code 631 Zipcodes | |
| 06390 Fishers Island, NY |  |
| 11701 Amityville, NY | |
| 11702 Babylon, NY | |
| 11703 North Babylon, NY | |
| 11704 West Babylon, NY | |
| 11715 Blue Point, NY | |
| 11716 Bohemia, NY | |
| 11717 Brentwood, NY | |
| 11718 Brightwaters, NY | |
| 11722 Central Islip, NY | |
| 11725 Commack, NY | |
| 11726 Copiague, NY | |
| 11727 Coram, NY | |
| 11730 East Islip, NY | |
| 11731 East Northport, NY | |
| 11735 Farmingdale, NY | |
| 11738 Farmingville, NY | |
| 11741 Holbrook, NY | |
| 11742 Holtsville, NY | |
| 11746 Huntington Station, NY | |
| 11749 Islandia, NY | |
| 11751 Islip, NY | |
| 11752 Islip Terrace, NY | |
| 11755 Lake Grove, NY | |
| 11763 Medford, NY | |
| 11764 Miller Place, NY | |
| 11767 Nesconset, NY | |
| 11768 Northport, NY | |
| 11769 Oakdale, NY | |
| 11772 Patchogue, NY | |
| 11776 Port Jefferson Station, NY | |
| 11777 Port Jefferson, NY | |
| 11778 Rocky Point, NY | |
| 11779 Ronkonkoma, NY | |
| 11780 Saint James, NY | |
| 11784 Selden, NY | |
| 11786 Shoreham, NY | |
| 11787 Smithtown, NY | |
| 11788 Hauppauge, NY | |
| 11789 Sound Beach, NY | |
| 11792 Wading River, NY | |
| 11794 Stony Brook, NY | |
| 11795 West Islip, NY | |
| 11796 West Sayville, NY | |
| 11798 Wyandanch, NY | |
| 11901 Riverhead, NY | |
| 11934 Center Moriches, NY | |
| 11935 Cutchogue, NY | |
Adjacent Area Codes:
| Area Code 516 |
| 11937 East Hampton, NY |
| 11941 Eastport, NY |
| 11952 Mattituck, NY |
| 11953 Middle Island, NY |
| 11954 Montauk, NY |
| 11955 Moriches, NY |
| 11958 Peconic, NY |
| 11964 Shelter Island, NY |
| 11965 Shelter Island Heights, NY |
| 11967 Shirley, NY |
| 11968 Southampton, NY |
| 11977 Westhampton, NY |
| 11980 Yaphank, NY |
| 11705 Bayport, NY |
| 11976 Water Mill, NY |
| 11978 Westhampton Beach, NY |
| 11963 Sag Harbor, NY |
| 11944 Greenport, NY |
| 11948 Laurel, NY |
| 11949 Manorville, NY |
| 11940 East Moriches, NY |
| 11971 Southold, NY |
| 11743 Huntington, NY |
| 11770 Ocean Beach, NY |
| 11754 Kings Park, NY |
| 11719 Brookhaven, NY |
| 11706 Bay Shore, NY |
| 11950 Mastic, NY |
| 11766 Mount Sinai, NY |
| 11747 Melville, NY |
| 11757 Lindenhurst, NY |
| 11782 Sayville, NY |
| 11713 Bellport, NY |
| 11721 Centerport, NY |
| 11957 Orient, NY |
| 11939 East Marion, NY |
| 11933 Calverton, NY |
| 11790 Stony Brook, NY |
| 11724 Cold Spring Harbor, NY |
| 11729 Deer Park, NY |
| 11733 East Setauket, NY |
| 11740 Greenlawn, NY |
| 11720 Centereach, NY |
| 11942 East Quogue, NY |
| 11961 Ridge, NY |
| 11946 Hampton Bays, NY |
| 11951 Mastic Beach, NY |
data sources: