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: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
562-278 A Norwalk CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2024-01-23   
562-278 0 Norwalk CA   649C ONVOY, LLC - CA 730      
562-278 1 Norwalk CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
562-278 2 Norwalk CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-07-25   
562-278 3 Norwalk CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
562-278 4 Norwalk CA   899D METROPCS NETWORKS, LLC 730   2007-06-16   
562-278 5 Norwalk CA   899D METROPCS NETWORKS, LLC 730   2007-06-16   
562-278 6 Norwalk CA   6529 T-MOBILE USA, INC. 730   2005-09-09   
562-278 7 Norwalk CA   6529 T-MOBILE USA, INC. 730   2017-04-06   
562-278 8 Norwalk CA   649C ONVOY, LLC - CA 730      
562-278 9 Norwalk CA   649C ONVOY, LLC - CA 730      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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