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: 823

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
562-823 A Whittier CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-10-03   
562-823 0 Whittier CA   516C AT&T CORP. 730   2026-01-06   
562-823 6 Whittier CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2025-10-06   
562-823 9 Whittier CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-10-03   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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