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.
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OCN: 4290 STPCS JOINT VENTURE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
956-516 0 Laredo TX   566   2014-10-24   
956-516 1 Laredo TX   566   2014-10-24   
956-516 2 Laredo TX   566   2014-10-24   
956-517 A Brownsville TX HRLNTXKX3MD  568      
956-517 0 Brownsville TX   568   2009-10-22   
956-517 9 Brownsville TX   568   2007-05-25   
956-518 A Brownsville TX HRLNTXKX3MD  568      
956-518 0 Brownsville TX   568   2013-09-19   
956-518 9 Brownsville TX   568   2013-09-19   
956-520 A Weslaco TX HRLNTXKX3MD  568      
956-520 0 Weslaco TX   568   2015-08-21   
956-520 1 Weslaco TX   568   2015-08-21   
956-520 5 Weslaco TX   568   2015-07-04   
956-520 6 Weslaco TX   568   2015-07-04   
956-520 9 Weslaco TX   568   2014-11-21   
956-521 A Brownsville TX HRLNTXKX8MD  568      
956-521 9 Brownsville TX   568   2007-06-07   
956-523 9 Laredo TX   566   2006-10-14   
956-525 0 Brownsville TX   568   2007-02-04   
956-525 1 Brownsville TX   568   2007-02-04   
956-525 9 Brownsville TX   568   2006-11-20   
956-529 2 Mission TX   568   2012-10-26   
956-529 3 Mission TX   568   2012-10-26   
956-529 6 Mission TX   568   2012-12-19   
956-529 7 Mission TX   568   2012-12-19   
956-529 8 Mission TX   568   2012-12-19   
956-529 9 Mission TX   568   2012-08-23   
956-530 A McAllen TX HRLNTXKX3MD  568      
956-530 0 McAllen TX   568   2015-02-08   
956-530 5 McAllen TX   568   2015-07-10   
956-530 6 McAllen TX   568   2015-07-10   
956-530 8 McAllen TX   568   2015-07-10   
956-530 9 McAllen TX   568   2015-02-08   
956-531 0 Laredo TX   566   2020-09-11   
956-531 1 Laredo TX   566   2020-09-11   
956-531 7 Laredo TX   566   2020-09-11   
956-531 8 Laredo TX   566   2020-09-11   
956-531 9 Laredo TX   566   2020-09-11   
956-533 A McAllen TX HRLNTXKX3MD  568      
956-534 A McAllen TX HRLNTXKX3MD  568      
956-536 A Harlingen TX HRLNTXKX3MD  568      
956-538 0 Brownsville TX   568   2020-09-09   
956-538 6 Brownsville TX   568   2021-03-14   
956-538 7 Brownsville TX   568   2021-03-14   
956-538 8 Brownsville TX   568   2021-03-14   
956-539 9 Laredo TX   566   2019-02-03   
956-551 8 Brownsville TX   568   2014-12-01   
956-558 A McAllen TX HRLNTXKX3MD  568      
956-558 0 McAllen TX   568   2020-10-12   
956-558 2 McAllen TX   568   2021-02-05   

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Last updated: Mon, 24 May 2021 01:28:43 UTC

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