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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 562 [Rate centres in NPA 562] [Dial plan for NPA 562]

NXX: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
562-821 A Pico Rivera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
562-821 0 Pico Rivera CA   649C ONVOY, LLC - CA 730   2026-03-14   
562-821 1 Pico Rivera CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-20   
562-821 2 Pico Rivera CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-20   
562-821 3 Pico Rivera CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2019-03-29   
562-821 4 Pico Rivera CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-03-31   
562-821 5 Pico Rivera CA COVNCAXFXUX  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
562-821 6 Pico Rivera CA   829J PAETEC ITEL, LLC 730   2015-10-13   
562-821 7 Pico Rivera CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2013-12-02   
562-821 8 Pico Rivera CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2013-12-02   
562-821 9 Pico Rivera CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-07-08   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.