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: 505

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-505 A Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 0 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 1 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 2 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 3 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 4 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 5 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 6 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 7 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-505 8 Austin TX   793K TWC IP ENABLED SERVICES, LLC 558      
512-505 9 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.