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.
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Switch: NEVDTXXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-843 A Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-843 0 Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-843 2 Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-843 3 Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-843 4 Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-843 6 Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-843 8 Nevada EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-853 A Nevada TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-853 0 Nevada TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-853 2 Nevada TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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