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: 323 [Rate centres in NPA 323] [Dial plan for NPA 323]

NXX: 594

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-594 A Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 0 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 1 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 2 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 3 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 4 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 5 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 6 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 7 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-594 8 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-594 9 Montebello CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.