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: AUSTTXUHXMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-201 6 Austin TX 8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 558   2012-02-06   
512-456 A Leander TX 8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 558      
512-456 5 Leander TX 8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 558   2008-12-29   
512-774 3 Austin TX 8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 558   2013-02-05   

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

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