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: 671

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-671 A Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 0 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-671 1 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 2 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 3 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 4 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 5 Austin TX AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
512-671 6 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 7 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 8 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      
512-671 9 Austin TX AUSTTXRRDS0  9533 SOUTHWESTERN BELL 558      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.