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: DRSPTXXADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-858 A Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 0 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 1 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 2 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 3 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 4 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 5 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 7 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-858 9 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-894 A Dripping Springs PPCP TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-894 0 Dripping Springs PPCP TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-894 3 Dripping Springs PPCP TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
737-260 8 Dripping Springs TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558   2019-07-07   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.