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
424-402 1 West Los Angeles CA   649C ONVOY, LLC - CA 730   2017-03-13   
424-402 2 West Los Angeles CA   6529 T-MOBILE USA, INC. 730   2016-11-18   
424-402 3 West Los Angeles CA   073H TELNYX LLC 730   2017-03-24   
424-402 4 West Los Angeles CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2017-04-16   
424-402 5 West Los Angeles CA   649C ONVOY, LLC - CA 730   2017-06-09   
424-402 6 West Los Angeles CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-11-30   
424-402 7 West Los Angeles CA   6529 T-MOBILE USA, INC. 730   2016-09-06   
424-402 8 West Los Angeles CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-10-28   
424-402 9 West Los Angeles CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2016-09-05   
424-403 A Compton: Compton DA CA   6529 T-MOBILE USA, INC. 730      
424-403 0 Compton: Compton DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-04-27   
424-403 1 Compton: Compton DA CA   649C ONVOY, LLC - CA 730   2017-11-16   
424-403 2 Compton: Compton DA CA   649C ONVOY, LLC - CA 730   2017-11-16   
424-403 3 Compton: Compton DA CA   320H VODEX COMMUNICATIONS CORPORATION - CA 730   2017-09-17   
424-403 4 Compton: Compton DA CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2017-09-20   
424-403 5 Compton: Compton DA CA   7453 U.S. TELEPACIFIC CORP. - CA 730   2017-01-01   
424-403 6 Compton: Compton DA CA   7453 U.S. TELEPACIFIC CORP. - CA 730   2017-01-01   
424-403 7 Compton: Compton DA CA   8322 MPOWER COMMUNICATIONS CORP - CA 730   2017-01-01   
424-403 8 Compton: Compton DA CA   4129 O1 COMMUNICATIONS, INC. - CA 730   2017-12-03   
424-403 9 Compton: Compton DA CA   6529 T-MOBILE USA, INC. 730   2016-12-31   
424-404 A Redondo CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2017-08-21   
424-404 0 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-09   
424-404 1 Redondo CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2017-08-21   
424-404 2 Redondo CA   899D METROPCS NETWORKS, LLC 730   2017-09-10   
424-404 3 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-10-24   
424-404 4 Redondo CA   320H VODEX COMMUNICATIONS CORPORATION - CA 730   2017-10-06   
424-404 5 Redondo CA   649C ONVOY, LLC - CA 730   2017-11-12   
424-404 6 Redondo CA   649C ONVOY, LLC - CA 730   2017-11-12   
424-404 7 Redondo CA   7610 COMCAST PHONE OF CALIFORNIA, LLC - CA 730   2017-10-20   
424-404 8 Redondo CA   649C ONVOY, LLC - CA 730   2017-11-12   
424-404 9 Redondo CA   649C ONVOY, LLC - CA 730   2017-11-12   
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   
424-406 A Compton: Compton DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-01   
424-406 0 Compton: Compton DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-01   
424-406 1 Compton: Compton DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-01   
424-406 2 Compton: Compton DA CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2018-09-21   
424-406 3 Compton: Compton DA CA   6529 T-MOBILE USA, INC. 730   2019-02-08   
424-406 4 Compton: Compton DA CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-06-02   
424-406 5 Compton: Compton DA CA   6529 T-MOBILE USA, INC. 730   2019-02-08   
424-406 6 Compton: Compton DA CA   6529 T-MOBILE USA, INC. 730   2019-02-08   

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.