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: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 431

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-431 A Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-431 0 Inglewood CA   899D METROPCS NETWORKS, LLC 730      
310-431 1 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-431 2 Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-431 3 Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-431 4 Inglewood CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
310-431 5 Inglewood CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-431 6 Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-431 7 Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-431 8 Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-431 9 Inglewood CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.