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: LGCYTXXAH02

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-525 A League City TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-525 1 League City TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-525 2 League City TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-525 5 League City TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-526 A League City TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      

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

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