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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Switch: AUSTTXGR09Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
737-867 1 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-12-26   
737-867 2 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-12-26   
737-867 3 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-12-26   
737-867 4 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-12-26   
737-910 6 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2021-03-12   
737-931 8 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-12-27   
737-931 9 Austin TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-12-27   
737-999 6 Buda TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2014-05-26   

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Last updated: Fri, 03 Nov 2023 21:02:38 UTC

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