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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-467 3 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-02-15   
346-467 4 Richmond-Rosenberg TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-07-09   
346-467 5 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-467 6 Richmond-Rosenberg TX HSTNTXJAXGY  516J TON80 COMMUNICATIONS, LLC 560   2021-06-20   
346-467 7 Richmond-Rosenberg TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2021-08-30   
346-467 8 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-467 9 Richmond-Rosenberg TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2021-06-20   
346-468 A Tomball TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560      
346-468 0 Tomball TX HSTNTXYAPMD  495J STRATUS NETWORKS 560   2021-06-28   
346-468 1 Tomball TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2021-06-27   
346-468 2 Tomball TX HSTNTX362MD  939H COMMIO, LLC 560   2021-08-31   
346-468 3 Tomball TX HSTNTX362MD  939H COMMIO, LLC 560   2021-08-31   
346-468 4 Tomball TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-07-09   
346-468 5 Tomball TX HSTNTX362MD  939H COMMIO, LLC 560   2021-08-31   
346-468 6 Tomball TX HSTNTX362MD  939H COMMIO, LLC 560   2021-08-31   
346-468 7 Tomball TX HSTNTXJAXGY  516J TON80 COMMUNICATIONS, LLC 560   2021-07-30   
346-468 8 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-10-09   
346-468 9 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-10-09   
346-469 A Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-469 0 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 1 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 2 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 3 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 4 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 5 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 6 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 7 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 8 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-29   
346-469 9 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-11-05   
346-470 A Humble TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560      
346-470 0 Humble TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-13   
346-470 1 Humble TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-13   
346-470 2 Humble TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2021-06-27   
346-470 3 Humble TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2021-08-04   
346-470 4 Humble TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-07-09   
346-470 5 Humble TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-13   
346-470 6 Humble TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-13   
346-470 7 Humble TX HSTNTX362MD  939H COMMIO, LLC 560   2021-10-16   
346-470 8 Humble TX HSTNTX362MD  939H COMMIO, LLC 560   2021-10-16   
346-470 9 Humble TX HSTNTX362MD  939H COMMIO, LLC 560   2021-10-16   
346-471 A Houston Suburban TX HSTNTXYARMD  622J SKYE TELECOM LLC DBA SKYETEL 560      
346-471 0 Houston Suburban TX HSTNTXYARMD  622J SKYE TELECOM LLC DBA SKYETEL 560   2021-07-03   
346-471 1 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 2 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 3 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 4 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 5 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 6 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 7 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-07-09   
346-471 8 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-20   
346-471 9 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-20   
346-472 A Baytown TX HSTGTX052MD  073H TELNYX LLC 560      
346-472 0 Baytown TX HSTGTX052MD  073H TELNYX LLC 560   2021-07-31   
346-472 1 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-472 2 Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2021-08-08   
346-472 3 Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2021-08-08   
346-472 4 Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2021-08-08   
346-472 5 Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2021-08-08   
346-472 6 Baytown TX BYTWTXXARMD  624H ONVOY SPECTRUM, LLC 560   2021-11-19   
346-472 7 Baytown TX BYTWTXXARMD  624H ONVOY SPECTRUM, LLC 560   2021-11-19   
346-472 8 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-472 9 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-473 A Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-473 0 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 1 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 2 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 3 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 4 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 5 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 6 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 7 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 8 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 9 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-474 A Friendswood TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-474 0 Friendswood TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-22   
346-474 1 Friendswood TX HSTGTX052MD  073H TELNYX LLC 560   2022-04-02   
346-474 2 Friendswood TX HSTNTXJAXGY  516J TON80 COMMUNICATIONS, LLC 560   2021-06-07   
346-474 3 Friendswood TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-07-09   
346-474 4 Friendswood TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-04-04   
346-474 5 Friendswood TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-04-04   
346-474 6 Friendswood TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-04-04   
346-474 7 Friendswood TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-04-04   
346-474 8 Friendswood TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2022-02-24   
346-474 9 Friendswood TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2021-06-20   
346-475 A Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-475 0 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 1 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 2 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 3 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 4 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 5 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 6 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 7 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 8 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 9 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-476 A Arcola TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-476 0 Arcola TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-08-16   
346-476 1 Arcola TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-08-16   
346-476 2 Arcola TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2022-02-27   
346-476 3 Arcola TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2022-02-27   

<< 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 >>

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.