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: 990

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-990 A Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
323-990 0 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
323-990 1 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
323-990 2 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
323-990 3 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
323-990 4 Los Angeles: DA 04 CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-990 5 Los Angeles: DA 04 CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
323-990 6 Los Angeles: DA 04 CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-990 7 Los Angeles: DA 04 CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-990 8 Los Angeles: DA 04 CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
323-990 9 Los Angeles: DA 04 CA LSANCAJW6MD  073H TELNYX LLC 730      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.