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.

Pharr, TX

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
956-223 A HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2025-02-11   
956-223 0   5562 METROPCS, INC. 568   2005-07-14   
956-223 1   793K TWC IP ENABLED SERVICES, LLC 568   2020-06-14   
956-223 2   4866 SMARTCOM TELEPHONE, LLC 568   2005-02-19   
956-223 3   5562 METROPCS, INC. 568   2005-03-31   
956-223 4   793K TWC IP ENABLED SERVICES, LLC 568   2004-03-19   
956-223 5   5562 METROPCS, INC. 568   2005-03-31   
956-223 6   5562 METROPCS, INC. 568   2005-03-31   
956-223 7   5562 METROPCS, INC. 568   2005-01-15   
956-223 8   5562 METROPCS, INC. 568   2005-01-15   
956-223 9   5562 METROPCS, INC. 568   2005-01-15   
956-258 A HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-258 0   5562 METROPCS, INC. 568   2014-02-24   
956-258 1   5562 METROPCS, INC. 568   2014-02-24   
956-258 2   5562 METROPCS, INC. 568   2014-02-03   
956-258 3   5562 METROPCS, INC. 568   2014-02-27   
956-258 4   5562 METROPCS, INC. 568   2014-02-27   
956-258 5   793K TWC IP ENABLED SERVICES, LLC 568   2014-01-16   
956-258 6   5562 METROPCS, INC. 568   2013-06-28   
956-258 7   5562 METROPCS, INC. 568   2013-06-28   
956-258 8   5562 METROPCS, INC. 568   2013-06-28   
956-258 9   145J TERRA NOVA TELECOM INC. 568   2024-11-14   
956-283 A PHRRTXPHDS0  9533 SOUTHWESTERN BELL 568      
956-283 0   9533 SOUTHWESTERN BELL 568      
956-283 1   9533 SOUTHWESTERN BELL 568      
956-283 2   9533 SOUTHWESTERN BELL 568      
956-283 3   9533 SOUTHWESTERN BELL 568      
956-283 4   5562 METROPCS, INC. 568   2004-11-11   
956-283 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2006-01-21   
956-283 6   5562 METROPCS, INC. 568   2004-11-11   
956-283 7   9533 SOUTHWESTERN BELL 568      
956-283 8   9533 SOUTHWESTERN BELL 568      
956-283 9   9533 SOUTHWESTERN BELL 568      
956-325 A HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-325 0   5562 METROPCS, INC. 568   2007-04-16   
956-325 1   5562 METROPCS, INC. 568   2007-04-16   
956-325 2   5562 METROPCS, INC. 568   2007-04-16   
956-325 3   5562 METROPCS, INC. 568   2007-07-06   
956-325 4   5562 METROPCS, INC. 568   2007-07-06   
956-325 5   5562 METROPCS, INC. 568   2007-07-06   
956-325 6   5562 METROPCS, INC. 568   2007-07-06   
956-325 7   5562 METROPCS, INC. 568   2007-07-06   
956-325 8   5562 METROPCS, INC. 568   2007-04-14   
956-325 9   5562 METROPCS, INC. 568   2007-04-14   
956-354 A HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-354 0   7399 WESTEL, INC. - TX 568   2008-03-31   
956-354 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2010-10-17   
956-354 2   9533 SOUTHWESTERN BELL 568   2008-06-07   
956-354 3   9533 SOUTHWESTERN BELL 568   2008-06-07   
956-354 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2010-12-09   
956-354 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2010-12-09   
956-354 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2010-12-30   
956-354 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2010-12-30   
956-354 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2011-02-07   
956-354 9   5562 METROPCS, INC. 568   2007-12-10   
956-402 A HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-402 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2011-03-14   
956-402 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2011-03-14   
956-402 2   4866 SMARTCOM TELEPHONE, LLC 568   2016-01-24   
956-402 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2011-08-20   
956-402 4   4866 SMARTCOM TELEPHONE, LLC 568   2011-10-15   
956-402 5   5562 METROPCS, INC. 568   2011-02-12   
956-402 6   5562 METROPCS, INC. 568   2011-02-12   
956-402 7   5562 METROPCS, INC. 568   2011-02-12   
956-402 8   5562 METROPCS, INC. 568   2011-02-12   
956-402 9   5562 METROPCS, INC. 568   2011-02-12   
956-403 A HRLNTXHGFMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568      
956-403 0   776A VTX COMMUNICATIONS, LLC 568   2016-06-06   
956-403 1   5562 METROPCS, INC. 568   2017-03-24   
956-403 2   5562 METROPCS, INC. 568   2017-03-24   
956-403 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568   2016-03-10   
956-403 4   5562 METROPCS, INC. 568   2017-03-24   
956-403 5   4866 SMARTCOM TELEPHONE, LLC 568   2016-05-16   
956-403 6   903C ONVOY, LLC - TX 568   2017-05-03   
956-403 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2025-04-05   
956-403 8   5562 METROPCS, INC. 568   2017-07-27   
956-403 9   5562 METROPCS, INC. 568   2017-07-27   
956-438 A HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-438 0   5562 METROPCS, INC. 568   2014-02-27   
956-438 1   5562 METROPCS, INC. 568   2014-02-27   
956-438 2   5562 METROPCS, INC. 568   2014-02-03   
956-438 3   5562 METROPCS, INC. 568   2014-02-27   
956-438 4   5562 METROPCS, INC. 568   2014-02-27   
956-438 5   5562 METROPCS, INC. 568   2014-02-27   
956-438 6   5562 METROPCS, INC. 568   2014-02-27   
956-438 7   145J TERRA NOVA TELECOM INC. 568   2024-04-23   
956-438 8   5562 METROPCS, INC. 568   2014-09-21   
956-438 9   5562 METROPCS, INC. 568   2014-10-01   
956-460 A HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-460 0   5562 METROPCS, INC. 568      
956-460 1   5562 METROPCS, INC. 568      
956-460 2   5562 METROPCS, INC. 568      
956-460 3   5562 METROPCS, INC. 568      
956-460 4   5562 METROPCS, INC. 568      
956-460 5   5562 METROPCS, INC. 568      
956-460 6   5562 METROPCS, INC. 568      
956-460 7   5562 METROPCS, INC. 568      
956-460 8   5562 METROPCS, INC. 568      
956-460 9   5562 METROPCS, INC. 568      
956-475 A HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568      

1 2 3 4 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.