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.

Harlingen, TX

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
956-367 8 HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2014-11-07   
956-367 9 HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2014-11-07   
956-368 A HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-368 0 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-11-25   
956-368 1 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-01-27   
956-368 2 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-01-27   
956-368 3 HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2015-07-24   
956-368 4 HRLNTXHGFMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568   2015-08-26   
956-368 5 HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2017-11-01   
956-368 6 HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2017-03-06   
956-368 7 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-01-27   
956-368 8 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2019-04-08   
956-368 9 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2019-04-08   
956-389 A HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 0   515J IP HORIZON LLC 568   2022-03-31   
956-389 1 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 2 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 3 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 4 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 5 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 6 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 7 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 8 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-389 9 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2022-10-16   
956-390 A HRLNTXHG03T  9533 SOUTHWESTERN BELL 568      
956-392 A HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-392 0 HRLNTXDU2MD  939H COMMIO, LLC 568   2024-01-20   
956-392 1 HRLNTXKX7MD  5562 METROPCS, INC. 568   2020-06-10   
956-392 2 HRLNTXKX7MD  5562 METROPCS, INC. 568   2019-02-25   
956-392 3 HRLNTXKX7MD  5562 METROPCS, INC. 568   2015-12-18   
956-392 4 HRLNTXKX7MD  5562 METROPCS, INC. 568   2020-06-10   
956-392 5 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-392 6 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-392 7 HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-392 8 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-07-09   
956-392 9 HRLNTXKX7MD  5562 METROPCS, INC. 568   2017-01-06   
956-406 A HRLNTXHGXBX  551G NUSO, LLC 568      
956-406 0 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-11-25   
956-406 1 HRLNTXHGXBX  551G NUSO, LLC 568   2013-05-08   
956-406 2 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2022-10-23   
956-406 3 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-08-23   
956-406 4 HRLNTXKX7MD  5562 METROPCS, INC. 568   2015-12-23   
956-406 5 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-08-23   
956-406 6 HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2018-01-02   
956-406 7 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-08-23   
956-406 8 MCALTX935MD  073H TELNYX LLC 568   2022-06-19   
956-406 9 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2022-10-23   
956-412 A HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-421 A HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-423 A HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.