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: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-480 8 Crosby TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2022-05-21   
346-480 9 Crosby TX HSTGTX052MD  073H TELNYX LLC 560   2022-04-23   
346-481 A Richmond-Rosenberg TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-481 0 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 1 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 2 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 3 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 4 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 5 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 6 Richmond-Rosenberg TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2021-05-20   
346-481 7 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 8 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-481 9 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-05-21   
346-482 A Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-482 0 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-30   
346-482 1 Langham Creek TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2021-08-30   
346-482 2 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-08-28   
346-482 3 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-08-28   
346-482 4 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-08-28   
346-482 5 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-08-28   
346-482 6 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-30   
346-482 7 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-08-29   
346-482 8 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-08-29   
346-482 9 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-08-29   
346-483 A Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-483 0 Apollo TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2022-10-24   
346-483 1 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-10-21   
346-483 2 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-10-21   
346-483 3 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-19   
346-483 4 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-19   
346-483 5 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-19   
346-483 6 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-19   
346-483 7 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-10-21   
346-483 8 Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-10-21   
346-483 9 Apollo TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2022-10-24   
346-484 A Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-484 0 Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2023-08-26   
346-484 1 Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2023-10-14   
346-484 2 Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-10-21   
346-484 3 Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-10-21   
346-484 4 Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-19   
346-484 5 Sheldon TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-09-19   
346-484 6 Sheldon TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2024-03-20   
346-484 7 Sheldon TX   515J IP HORIZON LLC 560   2025-03-02   
346-484 8 Sheldon TX HSTGTX052MD  073H TELNYX LLC 560   2022-04-02   
346-484 9 Sheldon TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2022-02-28   
346-485 A Huffman TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560      
346-485 0 Huffman TX HSTNTXYAHMD  073H TELNYX LLC 560   2021-09-20   
346-485 1 Huffman TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2024-04-20   
346-485 2 Huffman TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2022-05-16   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.