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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-346 A Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-346 0 Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-06-16   
424-346 1 Malibu CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-06-17   
424-346 2 Malibu CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-08-22   
424-346 3 Malibu CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-08-21   
424-346 4 Malibu CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2014-09-30   
424-346 5 Malibu CA ANHMCANGDS0  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2014-10-20   
424-346 6 Malibu CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2014-10-25   
424-346 7 Malibu CA   508J CENTURYLINK COMMUNICATIONS LLC 730   2014-06-27   
424-346 8 Malibu CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2014-12-25   
424-346 9 Malibu CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2014-10-24   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.