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.

NPA: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 524

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-524 A Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 0 Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 1 Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 2 Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 3 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2005-01-08   
512-524 4 Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 5 Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 6 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2005-01-08   
512-524 7 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2005-01-08   
512-524 8 Austin TX AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-524 9 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2005-01-08   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.