Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 323 [Rate centres in NPA 323] [Dial plan for NPA 323]

NXX: 483

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-483 A Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
323-483 0 Montebello CA   899D METROPCS NETWORKS, LLC 730   2012-11-25   
323-483 1 Montebello CA   899D METROPCS NETWORKS, LLC 730   2012-11-25   
323-483 2 Montebello CA   899D METROPCS NETWORKS, LLC 730   2012-11-25   
323-483 3 Montebello CA   899D METROPCS NETWORKS, LLC 730   2012-11-25   
323-483 4 Montebello CA   649C ONVOY, LLC - CA 730   2013-01-10   
323-483 5 Montebello CA   649C ONVOY, LLC - CA 730   2013-01-10   
323-483 6 Montebello CA   649C ONVOY, LLC - CA 730   2013-01-10   
323-483 7 Montebello CA   508J CENTURYLINK COMMUNICATIONS, LLC 730   2013-03-08   
323-483 8 Montebello CA   899D METROPCS NETWORKS, LLC 730   2012-11-15   
323-483 9 Montebello CA   6529 T-MOBILE USA, INC. 730   2012-11-15   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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