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: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-592 A Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-592 0 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-11-15   
512-592 1 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-11-25   
512-592 2 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-11-29   
512-592 3 Austin TX AUSTTXGKDS1  8958 XO TEXAS, INC. 558   2007-11-05   
512-592 4 Austin TX AUSWTXSZDS2  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2007-11-05   
512-592 5 Austin TX AUSWTXSZDS2  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2007-11-05   
512-592 6 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2007-11-05   
512-592 7 Austin TX AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2007-11-05   
512-592 8 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-09-24   
512-592 9 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-09-30   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.