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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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
424-405 A El Segundo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-11-25   
424-405 0 El Segundo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-11-25   
424-405 1 El Segundo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-12-20   
424-405 2 El Segundo CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2017-11-27   
424-405 3 El Segundo CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2017-12-22   
424-405 4 El Segundo CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-12-29   
424-405 5 El Segundo CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2017-12-22   
424-405 6 El Segundo CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-03-01   
424-405 7 El Segundo CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2018-05-24   
424-405 8 El Segundo CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2018-05-24   
424-405 9 El Segundo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-12-04   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.