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: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-321 A El Segundo CA   6529 T-MOBILE USA, INC. 730      
424-321 0 El Segundo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-10-16   
424-321 1 El Segundo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-09-30   
424-321 2 El Segundo CA   7453 U.S. TELEPACIFIC CORP. - CA 730   2014-07-06   
424-321 3 El Segundo CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2013-08-16   
424-321 4 El Segundo CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-08-16   
424-321 5 El Segundo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-04-03   
424-321 6 El Segundo CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-03-24   
424-321 7 El Segundo CA   649C ONVOY, LLC - CA 730   2013-12-02   
424-321 8 El Segundo CA   649C ONVOY, LLC - CA 730   2013-12-02   
424-321 9 El Segundo CA   6529 T-MOBILE USA, INC. 730   2013-08-15   

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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