Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 562 [Rate centres in NPA 562] [Dial plan for NPA 562]

NXX: 623

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
562-623 A Norwalk CA NRWLCAXGDS0  2319 FRONTIER CALIFORNIA INC. 730      
562-623 0 Norwalk CA   2319 FRONTIER CALIFORNIA INC. 730      
562-623 1 Norwalk CA   2319 FRONTIER CALIFORNIA INC. 730      
562-623 2 Norwalk CA   2319 FRONTIER CALIFORNIA INC. 730      
562-623 3 Norwalk CA   2319 FRONTIER CALIFORNIA INC. 730      
562-623 4 Norwalk CA   2319 FRONTIER CALIFORNIA INC. 730      
562-623 5 Norwalk CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-10-13   
562-623 7 Norwalk CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2008-06-25   
562-623 8 Norwalk CA   899D METROPCS NETWORKS, LLC 730   2010-09-27   
562-623 9 Norwalk CA   2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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