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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-920 3 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-920 4 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-920 5 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-920 6 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-920 7 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-920 8 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-920 9 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-04-12   
346-921 A Bammel TX   903C ONVOY, LLC - TX 560   2026-05-02   
346-921 0 Bammel TX   903C ONVOY, LLC - TX 560   2026-05-02   
346-921 1 Bammel TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-09   
346-921 2 Bammel TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-09   
346-922 A Brookshire TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-922 0 Brookshire TX KATYTXXA9MD  903C ONVOY, LLC - TX 560   2023-10-29   
346-922 1 Brookshire TX KATYTXXA9MD  903C ONVOY, LLC - TX 560   2023-10-29   
346-922 2 Brookshire TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2021-09-17   
346-922 3 Brookshire TX KATYTXXA9MD  903C ONVOY, LLC - TX 560   2021-12-23   
346-922 4 Brookshire TX BKSHTXXARS0  2072 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560   2023-04-27   
346-922 5 Brookshire TX KATYTXXA9MD  903C ONVOY, LLC - TX 560   2023-05-14   
346-922 6 Brookshire TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2022-03-03   
346-922 7 Brookshire TX HSTNTXJAXGY  516J TON80 COMMUNICATIONS, LLC 560   2022-03-23   
346-922 8 Brookshire TX KATYTXXA9MD  903C ONVOY, LLC - TX 560   2023-07-15   
346-922 9 Brookshire TX HSTNTXJAXQY  490J BOOST SUBSCRIBERCO L.L.C. 560   2022-09-03   
346-923 A Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 0 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 1 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 2 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 3 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 4 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 5 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 6 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 7 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 8 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-923 9 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-05-11   
346-924 A Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-06-09   
346-924 0 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-06-09   
346-924 1 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-07-07   
346-924 2 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-08-11   
346-924 3 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-09-16   
346-924 4 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 5 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 6 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 7 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 8 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 9 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-925 A Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 0 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 1 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 2 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 3 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 4 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 5 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 6 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 7 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-925 8 Houston TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-926 A Huffman TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-926 0 Huffman TX   903C ONVOY, LLC - TX 560   2026-05-31   
346-932 A Houston TX   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   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   
346-941 A Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-01-04   
346-941 0 Channelview TX   6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-17   
346-941 1 Channelview TX   6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-17   
346-941 2 Channelview TX   6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-17   
346-941 3 Channelview TX   6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-28   
346-941 4 Channelview TX   6701 AERIAL COMMUNICATIONS, INC. 560   2025-01-28   
346-941 5 Channelview TX   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   

<< 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 >>

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.