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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-928 3 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-07-20   
346-928 4 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-07-20   
346-928 5 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-07-20   
346-928 6 Cypress TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-21   
346-928 7 Cypress TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-21   
346-928 8 Cypress TX HSTNTXJAXQY  490J BOOST SUBSCRIBERCO L.L.C. 560   2026-07-21   
346-928 9 Cypress TX HSTDTXBGBMD  5562 METROPCS, INC. 560   2026-07-21   
346-929 A Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 0 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 1 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 2 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 3 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 4 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 5 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 6 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 7 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 8 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-929 9 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-24   
346-930 A Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 0 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 1 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 2 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 3 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 4 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 5 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 6 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 7 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 8 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-930 9 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-07-25   
346-931 A Porter TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-09-04   
346-931 8 Porter TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-09-04   
346-931 9 Porter TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-09-04   
346-932 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-932 0 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 1 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 2 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 3 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 4 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 5 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 6 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 7 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-932 8 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2014-07-10   
346-932 9 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2014-08-08   
346-933 A Richmond-Rosenberg TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-933 0 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-933 1 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-933 2 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-933 3 Richmond-Rosenberg TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2021-09-17   
346-933 4 Richmond-Rosenberg TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-18   
346-933 5 Richmond-Rosenberg TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-18   
346-933 6 Richmond-Rosenberg TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-18   
346-933 7 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-933 8 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-933 9 Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-23   
346-934 A Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-09-18   
346-934 8 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-09-18   
346-934 9 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-09-18   
346-935 A Houston Suburban TX   903C ONVOY, LLC - TX 560   2026-09-14   
346-935 0 Houston Suburban TX   903C ONVOY, LLC - TX 560   2026-09-14   
346-935 1 Houston Suburban TX   903C ONVOY, LLC - TX 560   2026-09-14   
346-936 A Cleveland TX HSTDTXBGBMD  5562 METROPCS, INC. 560   2026-08-09   
346-936 9 Cleveland TX HSTDTXBGBMD  5562 METROPCS, INC. 560   2026-08-09   
346-937 A Spring TX   903C ONVOY, LLC - TX 560   2026-09-14   
346-937 0 Spring TX   903C ONVOY, LLC - TX 560   2026-09-14   
346-938 A Bammel TX   903C ONVOY, LLC - TX 560   2026-09-20   
346-938 0 Bammel TX   903C ONVOY, LLC - TX 560   2026-09-20   
346-938 1 Bammel TX   903C ONVOY, LLC - TX 560   2026-09-20   
346-941 A Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-01-04   
346-941 0 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-17   
346-941 1 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-17   
346-941 2 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-17   
346-941 3 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-28   
346-941 4 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-28   
346-941 5 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-28   
346-941 8 Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-01-04   
346-941 9 Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-01-04   
346-946 A Cypress TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-946 0 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 1 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 2 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 3 Cypress TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-08-30   
346-946 4 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 5 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 6 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 7 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-946 8 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-10-06   
346-946 9 Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-14   
346-954 A Deer Park TX HSTNTX01X7X  516C AT&T CORP. 560      
346-954 0 Deer Park TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2017-05-27   
346-954 1 Deer Park TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2017-05-27   
346-954 2 Deer Park TX HSTNTXJAX3Y  073H TELNYX LLC 560   2017-06-07   
346-954 3 Deer Park TX HSTNTXJAXDY  145J TERRA NOVA TELECOM INC. 560   2026-03-29   
346-954 4 Deer Park TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-06-09   
346-954 5 Deer Park TX HSTNTX01X7X  516C AT&T CORP. 560   2016-07-18   
346-954 6 Deer Park TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-07-03   
346-954 7 Deer Park TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2017-09-03   
346-954 8 Deer Park TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2017-09-03   
346-954 9 Deer Park TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2017-11-04   
346-955 A Dickinson TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-955 0 Dickinson TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-01-15   

<< 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 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.