Area Code 631 is located in the state of New York.
The New York`s major city is Huntington
The state of New York is in Eastern timezone.
More important cities in New York:
Bay Shore, NY; Brentwood, NY; Centereach, NY; Central Islip, NY; Commack, NY; Copiague, NY; Coram, NY; Deer Park, NY; Dix Hills, NY; East Northport, NY; East Patchogue, NY; Hauppauge, NY; Holbrook, NY; Huntington Station, NY; Islip, NY; Lindenhurst, NY; Medford, NY; Ronkonkoma, NY; Selden, NY; Shirley, NY; Smithtown, NY; West Babylon, NY; West Islip, NY;
Prefixes within the 631 Area Code what we have in our database.
| Prefix | Primary City | County | Usage |
| (631) 679 | Wantagh, NY | Nassau | Landline |
| (631) 680 | Riverhead, NY | Suffolk | Cell Number |
| (631) 681 | Selden, NY | Suffolk | Cell Number |
| (631) 682 | Selden, NY | Suffolk | Cell Number |
| (631) 683 | Huntington, NY | Suffolk | Landline |
| (631) 685 | Hampton Bays, NY | Suffolk | Landline |
| (631) 686 | St James, NY | Suffolk | Landline |
| (631) 687 | Patchogue, NY | Suffolk | Landline |
| (631) 688 | Farmingdale, NY | Nassau | Landline |
| (631) 689 | East Setauket, NY | Suffolk | Landline |
| (631) 691 | Amityville, NY | Suffolk | Landline |
| (631) 692 | Cold Spring Harbor, NY | Suffolk | Landline |
| (631) 693 | Huntington, NY | Suffolk | Landline |
| (631) 694 | Farmingdale, NY | Nassau | Landline |
| (631) 695 | Brentwood, NY | Suffolk | Cell Number |
| (631) 696 | Selden, NY | Suffolk | Landline |
| (631) 697 | Huntington, NY | Suffolk | Cell Number |
| (631) 698 | Selden, NY | Suffolk | Landline |
| (631) 699 | Sayville, NY | Suffolk | Landline |
| (631) 701 | Eastport, NY | Suffolk | Landline |
| (631) 702 | Southampton, NY | Suffolk | Landline |
| (631) 703 | Amityville, NY | Suffolk | Cell Number |
| (631) 704 | Brentwood, NY | Suffolk | Cell Number |
| (631) 706 | Stony Brook, NY | Suffolk | Landline |
| (631) 707 | Brentwood, NY | Suffolk | Landline |
| (631) 708 | Brentwood, NY | Suffolk | Landline |
| (631) 709 | Water Mill, NY | Suffolk | Landline |
| (631) 712 | Farmingdale, NY | Nassau | Landline |
| (631) 713 | Eastport, NY | Suffolk | Landline |
| (631) 714 | Patchogue, NY | Suffolk | Landline |
| (631) 715 | Central Islip, NY | Suffolk | Landline |
| (631) 716 | Selden, NY | Suffolk | Landline |
| (631) 717 | E Hampton, NY | Suffolk | Landline |
| (631) 719 | Farmingdale, NY | Nassau | Landline |
| (631) 720 | Not filled | Not filled | Unknown |
| (631) 721 | Selden, NY | Suffolk | Landline |
| (631) 722 | Riverhead, NY | Suffolk | Landline |
| (631) 723 | Hampton Bays, NY | Suffolk | Landline |
| (631) 724 | Smithtown, NY | Suffolk | Landline |
| (631) 725 | Sag Harbor, NY | Suffolk | Landline |
| (631) 726 | Southampton, NY | Suffolk | Landline |
| (631) 727 | Riverhead, NY | Suffolk | Landline |
| (631) 728 | Hampton Bays, NY | Suffolk | Landline |
| (631) 729 | Moriches, NY | Suffolk | Landline |
| (631) 730 | Patchogue, NY | Suffolk | Landline |
| (631) 731 | East Hampton, NY | Suffolk | Landline |
| (631) 732 | Selden, NY | Suffolk | Landline |
| (631) 733 | Brentwood, NY | Suffolk | Cell Number |
| (631) 734 | Peconic, NY | Suffolk | Landline |
| (631) 736 | Selden, NY | Suffolk | Landline |
| (631) 737 | Ronkonkoma, NY | Suffolk | Landline |
| (631) 738 | Ronkonkoma, NY | Suffolk | Landline |
| (631) 739 | Ronkonkoma, NY | Suffolk | Landline |
| (631) 740 | Riverhead, NY | Suffolk | Landline |
| (631) 741 | Brentwood, NY | Suffolk | Cell Number |
| (631) 742 | Huntington, NY | Suffolk | Cell Number |
| (631) 743 | Not filled | Suffolk | Cell Number |
| (631) 744 | Shoreham, NY | Suffolk | Landline |
| (631) 745 | Bayport, NY | Suffolk | Cell Number |
| (631) 747 | Brentwood, NY | Suffolk | Cell Number |
| (631) 748 | Brentwood, NY | Suffolk | Cell Number |
| (631) 749 | Shelter Island, NY | Suffolk | Landline |
| (631) 750 | Sayville, NY | Suffolk | Landline |
| (631) 751 | East Setauket, NY | Suffolk | Landline |
| (631) 752 | Farmingdale, NY | Nassau | Landline |
| (631) 753 | Farmingdale, NY | Nassau | Landline |
| (631) 754 | Northport, NY | Suffolk | Landline |
| (631) 755 | Farmingdale, NY | Nassau | Landline |
| (631) 756 | Farmingdale, NY | Nassau | Landline |
| (631) 757 | Northport, NY | Suffolk | Landline |
| (631) 758 | Patchogue, NY | Suffolk | Landline |
| (631) 759 | Huntington, NY | Suffolk | Landline |
| (631) 760 | Huntington, NY | Suffolk | Landline |
| (631) 761 | Central Islip, NY | Suffolk | Landline |
| (631) 762 | Stony Brook, NY | Suffolk | Landline |
| (631) 763 | Garden City, NY | Nassau | Landline |
| (631) 764 | Selden, NY | Suffolk | Cell Number |
| (631) 765 | Southold, NY | Suffolk | Landline |
| (631) 766 | Brentwood, NY | Suffolk | Cell Number |
| (631) 767 | Brentwood, NY | Suffolk | Cell Number |
| (631) 768 | Garden City, NY | Nassau | Landline |
| (631) 769 | Shoreham, NY | Suffolk | Landline |
| (631) 770 | Farmingdale, NY | Nassau | Landline |
| (631) 771 | E Hampton, NY | Suffolk | Landline |
| (631) 772 | Moriches, NY | Suffolk | Landline |
| (631) 773 | Farmingdale, NY | Nassau | Landline |
| (631) 774 | Brentwood, NY | Suffolk | Cell Number |
| (631) 775 | Yaphank, NY | Suffolk | Landline |
| (631) 776 | Bellport, NY | Suffolk | Landline |
| (631) 777 | Farmingdale, NY | Nassau | Landline |
| (631) 778 | Central Islip, NY | Suffolk | Landline |
| (631) 779 | Laurel, NY | Suffolk | Landline |
| (631) 780 | Smithtown, NY | Suffolk | Landline |
| (631) 781 | Wantagh, NY | Nassau | Landline |
| (631) 782 | Deer Park, NY | Suffolk | Landline |
| (631) 783 | Wantagh, NY | Nassau | Landline |
| (631) 784 | Central Islip, NY | Suffolk | Landline |
| (631) 785 | Wantagh, NY | Nassau | Landline |
| (631) 786 | Brentwood, NY | Suffolk | Cell Number |
| (631) 787 | Central Islip, NY | Suffolk | Landline |
We have 673 Prefixes in our database.