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.

Houston Suburban, TX

<< 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
346-291 2 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2018-02-26   
346-291 3 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-04-02   
346-291 4 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-04-02   
346-291 5 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-04-02   
346-291 6 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-04-02   
346-291 7 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-04-02   
346-291 8 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-04-02   
346-291 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-02-25   
346-297 A HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-297 0 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-05-22   
346-297 1 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-05-22   
346-297 2 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-05-22   
346-297 3 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-06-16   
346-297 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-06-16   
346-297 5 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-06-16   
346-297 6 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-06-16   
346-297 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-05-08   
346-297 8 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-05-08   
346-297 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-05-08   
346-302 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-302 0 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 1 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 2 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 3 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 5 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 6 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 8 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-302 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-08   
346-312 A HSTNTX01X7X  516C AT&T CORP. 560      
346-312 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-22   
346-312 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-22   
346-312 2 HSTOTXRWDS3  8958 XO TEXAS, INC. 560   2015-07-25   
346-312 3 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-22   
346-312 4 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2015-11-16   
346-312 5 HSTNTX01X7X  516C AT&T CORP. 560   2015-07-24   
346-312 6 HSTNTX01X7X  516C AT&T CORP. 560   2015-07-24   
346-312 7 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2016-01-04   
346-312 8 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2016-01-04   
346-312 9 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-22   
346-313 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-313 0 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-22   
346-313 1 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-22   
346-313 2 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-14   
346-313 3 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-14   
346-313 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-14   
346-313 5 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-14   
346-313 6 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-08-14   
346-313 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-04-12   

<< 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 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.