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

NXX: 539

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-539 A Compton: Gardena DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-30   
424-539 0 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-03-23   
424-539 1 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-04-23   
424-539 2 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-06-23   
424-539 3 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-07-05   
424-539 4 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-07-05   
424-539 5 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-08-05   
424-539 6 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-09-10   
424-539 7 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-10-16   
424-539 8 Compton: Gardena DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-05-23   
424-539 9 Compton: Gardena DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-30   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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