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: 424 [Rate centres in NPA 424] [Dial plan for NPA 424]

NXX: 408

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-408 A Redondo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
424-408 0 Redondo CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-408 1 Redondo CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
424-408 2 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
424-408 3 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
424-408 4 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
424-408 5 Redondo CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
424-408 6 Redondo CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
424-408 7 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
424-408 8 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
424-408 9 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.