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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-348 4 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2019-05-06   
346-348 5 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2019-05-06   
346-348 6 Houston TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2018-09-01   
346-348 7 Houston TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2018-10-22   
346-348 8 Houston TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. DBA T-MOBILE USA 560   2019-06-24   
346-348 9 Houston TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2018-10-22   
346-349 A Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560      
346-349 0 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-09-14   
346-349 1 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-09-14   
346-349 2 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-09-14   
346-349 3 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-09-14   
346-349 4 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-11-09   
346-349 5 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-11-09   
346-349 6 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-11-09   
346-349 7 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-11-09   
346-349 8 Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-10-29   
346-349 9 Channelview TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-09-14   
346-350 A Sugar Land TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-350 0 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-31   
346-350 1 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-31   
346-350 2 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-31   
346-350 3 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-31   
346-350 4 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-31   
346-350 5 Sugar Land TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2018-10-11   
346-350 6 Sugar Land TX HSTNTXJADS7  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-11-17   
346-350 7 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-07   
346-350 8 Sugar Land TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2018-10-07   
346-350 9 Sugar Land TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-09-16   
346-351 A Spring TX HSTNTXJAXVX  353D CHARTER FIBERLINK TX-CCO, LLC - TX 560      
346-351 0 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. DBA T-MOBILE USA 560   2016-12-19   
346-351 1 Spring TX HSTNTXJAXVX  353D CHARTER FIBERLINK TX-CCO, LLC - TX 560   2016-07-23   
346-351 2 Spring TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2016-10-14   
346-351 3 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-10   
346-351 4 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-10   
346-351 5 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-10   
346-351 6 Spring TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2017-09-10   
346-351 7 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. DBA T-MOBILE USA 560   2016-12-19   
346-351 8 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. DBA T-MOBILE USA 560   2016-12-19   
346-351 9 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. DBA T-MOBILE USA 560   2016-12-19   
346-352 A Houston TX HSTNTX01X7X  516C AT&T CORP. 560      
346-352 0 Houston TX HSTNTX01X7X  516C AT&T CORP. 560   2016-06-13   
346-352 1 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2016-08-15   
346-352 2 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2016-08-15   
346-352 3 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2016-05-23   
346-352 4 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2016-05-23   
346-352 5 Houston TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2016-05-23   
346-352 6 Houston TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2016-07-25   
346-352 7 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2016-08-15   
346-352 8 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2016-08-15   
346-352 9 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2016-08-16   

<< 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 >>

Last updated: Tue, 24 Jan 2023 03:01:57 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.