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.

Switch: AUSTTXGR33Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-543 A Rockdale TX 6922 MTPCS, LLC 558      
512-543 0 Rockdale TX 6922 MTPCS, LLC 558   2009-05-09   
512-760 A Rockdale TX 6922 MTPCS, LLC 558      
512-760 0 Rockdale TX 6922 MTPCS, LLC 558      
512-760 5 Rockdale TX 6922 MTPCS, LLC 558      
512-760 6 Rockdale TX 6922 MTPCS, LLC 558      
512-760 7 Rockdale TX 6922 MTPCS, LLC 558      
512-760 8 Rockdale TX 6922 MTPCS, LLC 558      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.