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.

OCN: 4290 STPCS JOINT VENTURE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
956-324 A Laredo TX SNANTX91X8X  566      
956-326 0 Laredo TX SNANTX91X7Y  566   2007-07-31   
956-326 5 Laredo TX SNANTX91X7Y  566   2006-04-06   
956-326 6 Laredo TX SNANTX91X7Y  566   2006-04-06   
956-326 7 Laredo TX SNANTX91X7Y  566   2006-04-06   
956-326 8 Laredo TX SNANTX91X7Y  566   2007-07-31   
956-326 9 Laredo TX SNANTX91X7Y  566   2007-07-31   
956-328 A McAllen TX HRLNTXKX3MD  568      
956-328 4 McAllen TX HRLNTXKX3MD  568   2015-01-04   
956-328 8 McAllen TX HRLNTXKX3MD  568   2015-01-04   
956-328 9 McAllen TX   568   2007-12-10   
956-331 9 McAllen TX   568   2007-12-10   
956-334 A Laredo TX   566      
956-334 0 Laredo TX SNANTX91X7Y  566      
956-334 1 Laredo TX SNANTX91X7Y  566      
956-334 2 Laredo TX SNANTX91X7Y  566      
956-334 3 Laredo TX SNANTX91X7Y  566      
956-334 4 Laredo TX SNANTX91X7Y  566      
956-334 5 Laredo TX SNANTX91X7Y  566      
956-334 6 Laredo TX SNANTX91X7Y  566      
956-334 7 Laredo TX SNANTX91X7Y  566      
956-334 8 Laredo TX SNANTX91X7Y  566      
956-334 9 Laredo TX   566      
956-335 A Harlingen TX HRLNTXKX3MD  568      
956-335 1 Harlingen TX HRLNTXKX3MD  568   2020-09-05   
956-335 7 Harlingen TX HRLNTXKX3MD  568   2013-09-12   
956-335 8 Harlingen TX HRLNTXKX3MD  568   2013-09-12   
956-335 9 Harlingen TX HRLNTXKX3MD  568   2013-09-12   
956-336 3 Brownsville TX HRLNTXKX3MD  568   2012-10-13   
956-336 4 Brownsville TX HRLNTXKX3MD  568   2013-06-10   
956-336 5 Brownsville TX HRLNTXKX3MD  568   2011-03-29   
956-336 6 Brownsville TX HRLNTXKX3MD  568   2011-03-29   
956-336 7 Brownsville TX HRLNTXKX3MD  568   2011-03-29   
956-336 8 Brownsville TX HRLNTXKX3MD  568   2011-10-14   
956-337 A Laredo TX   566      
956-337 0 Laredo TX SNANTX91X7Y  566      
956-337 1 Laredo TX SNANTX91X7Y  566      
956-337 2 Laredo TX SNANTX91X7Y  566      
956-337 3 Laredo TX SNANTX91X7Y  566      
956-337 4 Laredo TX SNANTX91X7Y  566      
956-337 5 Laredo TX SNANTX91X7Y  566      
956-337 6 Laredo TX SNANTX91X7Y  566      
956-337 7 Laredo TX SNANTX91X7Y  566      
956-337 8 Laredo TX SNANTX91X7Y  566      
956-337 9 Laredo TX   566      
956-340 6 McAllen TX HRLNTXKX3MD  568   2013-07-01   
956-340 7 McAllen TX HRLNTXKX3MD  568   2013-07-01   
956-340 8 McAllen TX HRLNTXKX3MD  568   2013-07-01   
956-340 9 McAllen TX HRLNTXKX3MD  568   2013-07-01   
956-343 9 Harlingen TX   568      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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