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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-570 A Houston Suburban TX HSTOTX42DS2  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-570 0 Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2016-12-24   
346-570 1 Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2016-12-24   
346-570 2 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2017-09-04   
346-570 3 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2017-09-15   
346-570 4 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2016-10-29   
346-570 5 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2017-05-18   
346-570 6 Houston Suburban TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-08-01   
346-570 7 Houston Suburban TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-08-01   
346-570 8 Houston Suburban TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-08-01   
346-570 9 Houston Suburban TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-08-01   
346-571 A Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-571 0 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 1 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 2 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 3 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 4 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 5 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 6 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 7 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 8 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 9 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-572 A Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-572 0 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-03   
346-572 1 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-03   
346-572 2 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-03   
346-572 3 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2022-12-15   
346-572 4 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2022-12-15   
346-572 5 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2022-12-15   
346-572 6 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-09-03   
346-572 7 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-09-03   
346-572 8 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2023-07-15   
346-572 9 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2023-08-26   
346-573 A Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-573 0 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 1 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 2 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 3 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 4 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 5 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 6 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 7 Cypress TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-08-27   
346-573 8 Cypress TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-12   
346-573 9 Cypress TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-12   
346-574 A Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-574 0 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 1 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 2 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 3 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 4 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 5 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 6 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-10-01   
346-574 7 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2022-09-16   
346-574 8 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2022-09-16   
346-574 9 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2022-09-16   
346-575 A Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-575 0 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-18   
346-575 1 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-18   
346-575 2 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2022-09-18   
346-575 3 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-09-19   
346-575 4 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-09-19   
346-575 5 Houston Suburban TX   145J TERRA NOVA TELECOM INC. 560   2022-09-19   
346-575 6 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-09-19   
346-575 7 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-09-19   
346-575 8 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-09-19   
346-575 9 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-09-19   
346-576 A Barker TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-576 0 Barker TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-03-20   
346-576 1 Barker TX HSTNTXYAOMD  515J IP HORIZON LLC 560   2021-03-21   
346-576 2 Barker TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2021-03-28   
346-576 3 Barker TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-02-18   
346-576 4 Barker TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-01-03   
346-576 5 Barker TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-01-03   
346-576 6 Barker TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-05-06   
346-576 7 Barker TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-05-06   
346-576 8 Barker TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-05-06   
346-576 9 Barker TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-05-06   
346-577 A Houston TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-577 0 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-10-06   
346-577 1 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-10-06   
346-577 2 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-09-30   
346-577 3 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-09-30   
346-577 4 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-09-30   
346-577 5 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-09-30   
346-577 6 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-09-30   
346-577 7 Houston TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-09-05   
346-577 8 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-07-02   
346-577 9 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-07-02   
346-578 A Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-578 0 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 1 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 2 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 3 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 4 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 5 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 6 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 7 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 8 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-578 9 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-09-23   
346-579 A Dickinson TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      

<< 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.