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: GRTWTXXAPS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-715 1 Burnet TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-746 3 Jarrell TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-856 3 Coupland TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-943 A Georgetown PPCP TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-943 3 Georgetown PPCP TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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