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: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-401 A Lomita CA ANHMCA01XRY  318J COMCAST IP PHONE, LLC 730      
424-401 0 Lomita CA   649C ONVOY, LLC - CA 730   2019-03-24   
424-401 1 Lomita CA   318J COMCAST IP PHONE, LLC 730   2017-11-14   
424-401 2 Lomita CA   649C ONVOY, LLC - CA 730   2017-12-22   
424-401 3 Lomita CA   649C ONVOY, LLC - CA 730   2017-12-22   
424-401 4 Lomita CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-04   
424-401 5 Lomita CA   649C ONVOY, LLC - CA 730   2019-03-24   
424-401 6 Lomita CA   6529 T-MOBILE USA, INC. 730   2019-01-20   
424-401 7 Lomita CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-11-02   
424-401 8 Lomita CA   6529 T-MOBILE USA, INC. 730   2018-09-01   
424-401 9 Lomita CA   073H TELNYX LLC 730   2018-05-11   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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