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: AUSUTXYYPS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-642 A Hutto TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-642 0 Hutto TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-642 1 Hutto TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-642 2 Hutto TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-646 1 Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 A Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 0 Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 1 Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 2 Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 4 Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 5 Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-722 8 Wimberley TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
737-218 4 Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558   2017-09-11   
737-704 A Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
737-704 0 Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558   2014-05-25   
737-704 2 Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558   2014-05-25   
737-704 3 Austin TX 7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558   2014-05-25   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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