Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-937 9 Southold NY   384C ONVOY, LLC- NY 132   2023-09-30   
631-938 A Port Jefferson NY NYCMNY83DSZ  4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132      
631-938 0 Port Jefferson NY   384C ONVOY, LLC- NY 132   2005-10-16   
631-938 1 Port Jefferson NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2005-12-16   
631-938 2 Port Jefferson NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2005-06-03   
631-938 3 Port Jefferson NY   145J TERRA NOVA TELECOM INC. 132   2020-12-28   
631-938 4 Port Jefferson NY   829J PAETEC ITEL, LLC 132   2010-07-12   
631-938 5 Port Jefferson NY   515J IP HORIZON LLC 132   2013-08-26   
631-938 6 Port Jefferson NY   997E BANDWIDTH.COM CLEC, LLC - NY 132   2011-05-28   
631-938 7 Port Jefferson NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2006-03-30   
631-938 8 Port Jefferson NY   384C ONVOY, LLC- NY 132   2005-10-16   
631-938 9 Port Jefferson NY   384C ONVOY, LLC- NY 132   2005-10-16   
631-939 A Riverhead NY SYOSNYGNCM1  5562 METROPCS, INC. 132      
631-939 0 Riverhead NY   515J IP HORIZON LLC 132   2020-06-05   
631-939 1 Riverhead NY   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2020-09-26   
631-939 2 Riverhead NY   384C ONVOY, LLC- NY 132   2019-09-14   
631-939 3 Riverhead NY   5562 METROPCS, INC. 132   2019-08-19   
631-939 4 Riverhead NY   5562 METROPCS, INC. 132   2019-08-19   
631-939 5 Riverhead NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2024-09-05   
631-939 6 Riverhead NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2020-10-30   
631-939 7 Riverhead NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2021-06-19   
631-939 8 Riverhead NY   5562 METROPCS, INC. 132   2022-02-07   
631-939 9 Riverhead NY   5562 METROPCS, INC. 132   2019-06-15   
631-940 A Deer Park NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-941 A Stony Brook NY STKTNYSKDS0  9104 VERIZON NEW YORK, INC. 132      
631-941 1 Stony Brook NY   9104 VERIZON NEW YORK, INC. 132      
631-941 2 Stony Brook NY   9104 VERIZON NEW YORK, INC. 132      
631-941 3 Stony Brook NY   9104 VERIZON NEW YORK, INC. 132      
631-941 4 Stony Brook NY   9104 VERIZON NEW YORK, INC. 132      
631-941 5 Stony Brook NY   9104 VERIZON NEW YORK, INC. 132      
631-941 6 Stony Brook NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2008-07-31   
631-941 7 Stony Brook NY   7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132   2008-01-01   
631-941 8 Stony Brook NY   829J PAETEC ITEL, LLC 132   2016-06-14   
631-941 9 Stony Brook NY   9104 VERIZON NEW YORK, INC. 132      
631-942 A Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-942 0 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 1 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 2 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 3 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 4 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 5 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 6 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-13   
631-942 7 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-14   
631-942 8 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-14   
631-942 9 Brentwood NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2005-10-14   
631-943 A Babylon NY SYOSNYGNCM1  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132      
631-944 A Huntington NY   829J PAETEC ITEL, LLC 132      
631-944 0 Huntington NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2003-02-04   
631-944 1 Huntington NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2003-02-04   
631-944 2 Huntington NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2003-02-04   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.