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: NRWLCAXGDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
562-229 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-404 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-407 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-469 A Downey CA 2319 FRONTIER CALIFORNIA INC. 730      
562-483 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-623 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-802 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-921 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      
562-926 A Norwalk CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Thu, 31 Jan 2019 11:20:40 UTC

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