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
346-430 7 Houston TX HSTNTXJAXQY  490J DISH WIRELESS, LLC 560   2023-09-07   
346-430 8 Houston TX HSTNTXJAXQY  490J DISH WIRELESS, LLC 560   2023-09-07   
346-430 9 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-11-05   
346-431 A Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-431 0 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 1 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 2 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 3 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 4 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 5 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 6 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 7 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 8 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 9 Baytown TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-432 A Houston Suburban TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-432 0 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 1 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 2 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 3 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 4 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 5 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 6 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 7 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-432 8 Houston Suburban TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-09-05   
346-432 9 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-09-06   
346-433 A Houston Suburban TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-433 0 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 1 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 2 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 3 Houston Suburban TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-10-17   
346-433 4 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 5 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 6 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 7 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-433 8 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-10-30   
346-433 9 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-18   
346-434 A Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-434 0 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 1 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 2 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 3 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 4 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 5 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 6 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 7 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 8 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-434 9 Houston Suburban TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-435 A Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-435 0 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-10-18   
346-435 1 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-10-18   
346-435 2 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-10-18   
346-435 3 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-435 4 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-435 5 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-435 6 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-435 7 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-435 8 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-435 9 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-08   
346-436 A Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-436 0 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-25   
346-436 1 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-25   
346-436 2 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-25   
346-436 3 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-25   
346-436 4 Langham Creek TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2024-10-06   
346-436 5 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-03   
346-436 6 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-03   
346-436 7 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-03   
346-436 8 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-03   
346-436 9 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-25   
346-437 A Houston Suburban TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-437 0 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-10   
346-437 1 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-10   
346-437 2 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-10   
346-437 3 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-10   
346-437 4 Houston Suburban TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2020-11-09   
346-437 5 Houston Suburban TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2020-11-09   
346-437 6 Houston Suburban TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2020-11-09   
346-437 7 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-10   
346-437 8 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-10   
346-437 9 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-10   
346-438 A Houston TX HSTNTXYAOMD  515J IP HORIZON LLC 560      
346-438 0 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 1 Houston TX   515J IP HORIZON LLC 560   2020-11-19   
346-438 2 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 3 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 4 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 5 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 6 Houston TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-11-20   
346-438 7 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 8 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-438 9 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-11-20   
346-439 A Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-439 0 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-27   
346-439 1 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-27   
346-439 2 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-26   
346-439 3 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-26   
346-439 4 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-26   
346-439 5 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-26   
346-439 6 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2020-11-26   
346-439 7 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-11-27   

<< 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: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.