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: LYSPTXXARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-559 A Dale/Lytton Springs TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-559 0 Dale/Lytton Springs TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-559 2 Dale/Lytton Springs TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-601 A Dale/Lytton Springs EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-601 1 Dale/Lytton Springs EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-601 2 Dale/Lytton Springs EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-601 9 Dale/Lytton Springs EMS TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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