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: SDRTTXXADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
361-785 A Seadrift TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-785 2 Seadrift TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-785 3 Seadrift TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-785 4 Seadrift TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-785 5 Seadrift TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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