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: PLANTXXDDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-427 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
469-685 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-378 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-431 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-473 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-604 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-605 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-781 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-796 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-797 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-981 A Plano TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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