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: 363

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-363 A Austin TX AUSTTXCVRS1  9533 SOUTHWESTERN BELL 558      
512-363 0 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-07-30   
512-363 1 Austin TX AUSTTXCVRS1  9533 SOUTHWESTERN BELL 558      
512-363 2 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-07-30   
512-363 3 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-07-30   
512-363 4 Austin TX AUSTTXCVRS1  9533 SOUTHWESTERN BELL 558      
512-363 5 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2006-02-08   
512-363 6 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-07-30   
512-363 7 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-08-08   
512-363 8 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-08-08   
512-363 9 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2005-07-30   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.