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: 445

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-445 A Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
424-445 0 Redondo CA LSANCAJW5MD  197D VONAGE AMERICA LLC 730   2020-05-28   
424-445 1 Redondo CA LSANCAJW5MD  197D VONAGE AMERICA LLC 730   2020-05-28   
424-445 2 Redondo CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2020-08-01   
424-445 3 Redondo CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2020-07-02   
424-445 4 Redondo CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2020-07-02   
424-445 5 Redondo CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2020-07-02   
424-445 6 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-08-22   
424-445 7 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
424-445 8 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
424-445 9 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.