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: FHSDFLXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
727-557 A St Petersburg FL 0328 FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 952      
727-557 0 St Petersburg FL 0328 FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 952      
727-557 1 St Petersburg FL 0328 FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 952      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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