Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 424 [Rate centres in NPA 424] [Dial plan for NPA 424]

NXX: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-644 A Malibu CA NRWLCA141MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730      
424-644 0 Malibu CA NRWLCA141MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2006-08-26   
424-644 1 Malibu CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-11-05   
424-644 2 Malibu CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2009-08-31   
424-644 3 Malibu CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2008-12-21   
424-644 4 Malibu CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2010-05-04   
424-644 5 Malibu CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2007-04-21   
424-644 6 Malibu CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-12-05   
424-644 7 Malibu CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2006-10-26   
424-644 8 Malibu CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2006-10-09   
424-644 9 Malibu CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-12-12   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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