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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-616 6 Humble TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2016-02-26   
346-616 7 Humble TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2016-02-26   
346-616 8 Humble TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-26   
346-616 9 Humble TX   903C ONVOY, LLC - TX 560   2017-11-09   
346-617 A Dickinson TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560      
346-617 0 Dickinson TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2016-02-20   
346-617 1 Dickinson TX   997G LOCAL ACCESS LLC - TX 560   2016-03-28   
346-617 2 Dickinson TX   903C ONVOY, LLC - TX 560   2017-06-02   
346-617 3 Dickinson TX   073H TELNYX LLC 560   2017-04-03   
346-617 4 Dickinson TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-08-09   
346-617 5 Dickinson TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-09-22   
346-617 6 Dickinson TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-09-22   
346-617 8 Dickinson TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2016-06-27   
346-617 9 Dickinson TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2016-02-20   
346-666 A Cypress TX   903C ONVOY, LLC - TX 560      
346-666 0 Cypress TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-07-31   
346-666 1 Cypress TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-07-31   
346-666 2 Cypress TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-07-31   
346-666 3 Cypress TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-07-31   
346-666 4 Cypress TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-07-31   
346-666 5 Cypress TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2015-11-14   
346-666 6 Cypress TX   903C ONVOY, LLC - TX 560   2015-06-13   
346-666 7 Cypress TX   903C ONVOY, LLC - TX 560   2015-07-11   
346-666 8 Cypress TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2016-06-29   
346-666 9 Cypress TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2016-01-03   
346-667 A Katy TX   965H FRACTEL, LLC 560   2020-08-16   
346-667 8 Katy TX   965H FRACTEL, LLC 560   2020-08-16   
346-677 A Baytown TX   965H FRACTEL, LLC 560   2020-08-20   
346-677 7 Baytown TX   965H FRACTEL, LLC 560   2020-08-20   
346-701 A Houston TX   903C ONVOY, LLC - TX 560      
346-701 0 Houston TX   516C AT&T CORP. 560   2015-06-13   
346-701 1 Houston TX   516C AT&T CORP. 560   2015-06-13   
346-701 2 Houston TX   7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560   2015-06-23   
346-701 3 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2016-02-07   
346-701 4 Houston TX   903C ONVOY, LLC - TX 560   2015-06-20   
346-701 5 Houston TX   903C ONVOY, LLC - TX 560   2015-06-20   
346-701 6 Houston TX   903C ONVOY, LLC - TX 560   2015-06-20   
346-701 7 Houston TX   8625 COMCAST PHONE OF TEXAS, LLC - TX 560   2015-06-13   
346-701 8 Houston TX   8625 COMCAST PHONE OF TEXAS, LLC - TX 560   2015-06-13   
346-701 9 Houston TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2015-06-13   
346-702 A Richmond-Rosenberg TX   7575 CENTURYLINK COMMUNICATIONS LLC 560      
346-702 0 Richmond-Rosenberg TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2015-07-22   
346-702 1 Richmond-Rosenberg TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2015-07-22   
346-702 2 Richmond-Rosenberg TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2015-07-22   
346-702 3 Richmond-Rosenberg TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2015-08-22   
346-702 4 Richmond-Rosenberg TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2015-08-22   
346-702 5 Richmond-Rosenberg TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2015-10-25   
346-702 6 Richmond-Rosenberg TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2015-12-06   
346-702 7 Richmond-Rosenberg TX   7575 CENTURYLINK COMMUNICATIONS LLC 560   2015-06-28   
346-702 8 Richmond-Rosenberg TX   6701 AERIAL COMMUNICATIONS DBA T-MOBILE USA 560   2015-12-06   

<< 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 >>

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.