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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-301 A El Segundo CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      
424-301 0 El Segundo CA   6529 T-MOBILE USA, INC. 730   2015-03-30   
424-301 1 El Segundo CA   6529 T-MOBILE USA, INC. 730   2015-03-30   
424-301 2 El Segundo CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2015-03-30   
424-301 3 El Segundo CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2015-03-29   
424-301 4 El Segundo CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2016-04-17   
424-301 5 El Segundo CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-05-12   
424-301 6 El Segundo CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-08-21   
424-301 7 El Segundo CA   649C ONVOY, LLC - CA 730   2016-03-03   
424-301 8 El Segundo CA   649C ONVOY, LLC - CA 730   2016-03-03   
424-301 9 El Segundo CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2016-08-18   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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