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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-999 A Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132      
631-999 0 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 1 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 2 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 3 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 4 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 5 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 6 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 7 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 8 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   
631-999 9 Jamesport NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2024-04-22   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.