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: 530

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-530 A Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-530 0 Montebello CA MTPKCACG1MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730      
323-530 1 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-530 2 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-530 3 Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-530 4 Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-530 5 Montebello CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-530 6 Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-530 7 Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-530 8 Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-530 9 Montebello CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.