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: 599

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-599 A Beverly Hills CA LSANCAJWIMD  965H FRACTEL, LLC 730      
424-599 0 Beverly Hills CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-07-15   
424-599 1 Beverly Hills CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-07-15   
424-599 2 Beverly Hills CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-07-15   
424-599 3 Beverly Hills CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-07-15   
424-599 4 Beverly Hills CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-08-08   
424-599 5 Beverly Hills CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-05-11   
424-599 6 Beverly Hills CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-07-08   
424-599 7 Beverly Hills CA LSANCAJWRMD  026K BARR TELL USA, LLC 730   2022-06-24   
424-599 8 Beverly Hills CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-06-14   
424-599 9 Beverly Hills CA LSANCAJWIMD  965H FRACTEL, LLC 730   2021-05-31   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.