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: AUSTTXGRGMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-220 A Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-538 A Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-546 A Dale/Lytton Springs TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-600 A Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-607 A Dripping Springs TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-642 A Hutto TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 A Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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