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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-305 6 Lomita CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-30   
424-305 7 Lomita CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2016-08-18   
424-305 8 Lomita CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2016-07-03   
424-305 9 Lomita CA   6529 T-MOBILE USA, INC. 730   2016-06-16   
424-306 A Torrance CA   649C ONVOY, LLC - CA 730      
424-306 0 Torrance CA   649C ONVOY, LLC - CA 730   2016-04-22   
424-306 1 Torrance CA   649C ONVOY, LLC - CA 730   2016-04-22   
424-306 2 Torrance CA   649C ONVOY, LLC - CA 730   2016-04-23   
424-306 3 Torrance CA   649C ONVOY, LLC - CA 730   2016-04-23   
424-306 4 Torrance CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-06-06   
424-306 5 Torrance CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-06-06   
424-306 6 Torrance CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-06-06   
424-306 7 Torrance CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-06-06   
424-306 8 Torrance CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-06-06   
424-306 9 Torrance CA   6529 T-MOBILE USA, INC. 730   2016-08-14   
424-307 A Hawthorne CA   981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-307 0 Hawthorne CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-24   
424-307 1 Hawthorne CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-24   
424-307 2 Hawthorne CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-24   
424-307 3 Hawthorne CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2018-10-18   
424-307 4 Hawthorne CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-24   
424-307 5 Hawthorne CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-24   
424-307 6 Hawthorne CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-07-01   
424-307 7 Hawthorne CA   899D METROPCS NETWORKS, LLC 730   2016-06-18   
424-307 8 Hawthorne CA   073H TELNYX LLC 730   2017-06-02   
424-307 9 Hawthorne CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-09-02   
424-308 A San Pedro CA   6529 T-MOBILE USA, INC. 730      
424-308 0 San Pedro CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-16   
424-308 1 San Pedro CA   899D METROPCS NETWORKS, LLC 730   2016-10-08   
424-308 2 San Pedro CA   6529 T-MOBILE USA, INC. 730   2016-11-18   
424-308 3 San Pedro CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-12-03   
424-308 4 San Pedro CA   6529 T-MOBILE USA, INC. 730   2016-09-22   
424-308 5 San Pedro CA   6529 T-MOBILE USA, INC. 730   2016-09-22   
424-308 6 San Pedro CA   7453 U.S. TELEPACIFIC CORP. - CA 730   2016-08-28   
424-308 7 San Pedro CA   6529 T-MOBILE USA, INC. 730   2016-08-07   
424-308 8 San Pedro CA   6529 T-MOBILE USA, INC. 730   2016-08-07   
424-308 9 San Pedro CA   6529 T-MOBILE USA, INC. 730   2016-06-20   
424-309 A Inglewood CA   649C ONVOY, LLC - CA 730      
424-309 0 Inglewood CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-09-14   
424-309 1 Inglewood CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-09-17   
424-309 2 Inglewood CA   6529 T-MOBILE USA, INC. 730   2016-07-06   
424-309 3 Inglewood CA   6529 T-MOBILE USA, INC. 730   2016-07-06   
424-309 4 Inglewood CA   6529 T-MOBILE USA, INC. 730   2016-07-06   
424-309 5 Inglewood CA   649C ONVOY, LLC - CA 730   2016-06-10   
424-309 6 Inglewood CA   649C ONVOY, LLC - CA 730   2016-06-10   
424-309 7 Inglewood CA   649C ONVOY, LLC - CA 730   2016-06-10   
424-309 8 Inglewood CA   649C ONVOY, LLC - CA 730   2016-06-10   
424-309 9 Inglewood CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-06-17   
424-310 A Hawthorne CA   899D METROPCS NETWORKS, LLC 730   2017-09-28   
424-310 0 Hawthorne CA   649C ONVOY, LLC - CA 730   2018-01-15   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 >>

Last updated: Sat, 14 Sep 2019 01:44:23 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.