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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-335 8 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2018-06-07   
346-335 9 Houston TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2018-10-13   
346-336 A Tomball TX HSTNTXJAXVX  353D CHARTER FIBERLINK TX-CCO, LLC - TX 560      
346-336 0 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-03-29   
346-336 1 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-03-29   
346-336 2 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-12   
346-336 3 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-12   
346-336 4 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-03   
346-336 5 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-03   
346-336 6 Tomball TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2018-11-29   
346-336 7 Tomball TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-09-01   
346-336 8 Tomball TX HSTNTXJAXVX  353D CHARTER FIBERLINK TX-CCO, LLC - TX 560   2016-10-27   
346-336 9 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-10-30   
346-337 A Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-01-12   
346-337 0 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-03   
346-337 1 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-03   
346-337 2 Cypress TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2019-02-04   
346-337 3 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-02-17   
346-337 4 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-08-12   
346-337 5 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-11-14   
346-337 6 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-11-14   
346-337 7 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-11-14   
346-337 8 Cypress TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2018-12-02   
346-337 9 Cypress TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-05-08   
346-338 A Valley Lodge TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-338 0 Valley Lodge TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-07-05   
346-338 1 Valley Lodge TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-09-01   
346-338 2 Valley Lodge TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-12-29   
346-338 3 Valley Lodge TX HSTNTXYANMD  506J TWILIO INTERNATIONAL INC 560   2020-10-08   
346-338 4 Valley Lodge TX HSTNTXYAHMD  073H TELNYX LLC 560   2020-10-18   
346-338 5 Valley Lodge TX   903C ONVOY, LLC - TX 560   2021-04-12   
346-338 6 Valley Lodge TX   566J RADIANTIQ LLC 560   2021-02-18   
346-338 7 Valley Lodge TX   903C ONVOY, LLC - TX 560   2021-04-12   
346-338 8 Valley Lodge TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-11   
346-338 9 Valley Lodge TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-12-04   
346-339 A Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-12-15   
346-339 0 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 1 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 2 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 3 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 4 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 5 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 6 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 7 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 8 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-06-29   
346-339 9 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2019-05-06   
346-340 A Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-340 0 Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2016-02-08   
346-340 1 Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2016-02-08   
346-340 2 Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2016-02-08   

<< 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 >>

Last updated: Fri, 10 Sep 2021 12:38:21 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.