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.

Switch: SNANTXCADS7

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
830-697 A Medina Lake TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-697 0 Medina Lake TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
956-229 6 Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2004-09-01   
956-284 2 Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2009-02-23   
956-415 9 Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2013-09-09   
956-625 A Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
956-625 1 Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2016-02-29   
956-625 6 Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2016-08-08   

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

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