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.

Northridge, CA

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
747-755 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-01   
747-755 6   649C ONVOY, LLC - CA 730   2019-03-03   
747-755 7   6529 T-MOBILE USA, INC. 730   2019-02-03   
747-755 8   899D METROPCS NETWORKS, LLC 730   2019-01-10   
747-755 9   899D METROPCS NETWORKS, LLC 730   2018-05-06   
747-786 A LSANCAJWIMD  965H FRACTEL, LLC 730      
747-786 0   649C ONVOY, LLC - CA 730   2021-07-28   
747-786 1   649C ONVOY, LLC - CA 730   2021-07-28   
747-786 2   649C ONVOY, LLC - CA 730   2021-07-28   
747-786 3   649C ONVOY, LLC - CA 730   2021-07-28   
747-786 4   6529 T-MOBILE USA, INC. 730   2021-07-12   
747-786 5   6529 T-MOBILE USA, INC. 730   2021-07-12   
747-786 6   6529 T-MOBILE USA, INC. 730   2021-07-12   
747-786 7   965H FRACTEL, LLC 730   2021-01-03   
747-786 8   6529 T-MOBILE USA, INC. 730   2021-07-12   
747-786 9   899D METROPCS NETWORKS, LLC 730   2021-03-14   
747-799 A LSANCAJWIMD  965H FRACTEL, LLC 730      
747-799 0   649C ONVOY, LLC - CA 730   2021-10-03   
747-799 1   649C ONVOY, LLC - CA 730   2021-10-03   
747-799 2   649C ONVOY, LLC - CA 730   2021-10-03   
747-799 3   624H ONVOY SPECTRUM, LLC 730   2021-11-14   
747-799 4   624H ONVOY SPECTRUM, LLC 730   2021-11-14   
747-799 5   624H ONVOY SPECTRUM, LLC 730   2021-11-14   
747-799 6   624H ONVOY SPECTRUM, LLC 730   2021-11-14   
747-799 7   624H ONVOY SPECTRUM, LLC 730   2021-11-14   
747-799 9   965H FRACTEL, LLC 730   2021-09-06   
747-836 A LSANCAJWJMD  516J TON80 COMMUNICATIONS, LLC 730      
747-836 0   649C ONVOY, LLC - CA 730   2022-03-12   
747-836 1   649C ONVOY, LLC - CA 730   2022-03-12   
747-836 2   516J TON80 COMMUNICATIONS, LLC 730   2022-03-11   
747-836 3   649C ONVOY, LLC - CA 730   2022-03-12   
747-836 4   649C ONVOY, LLC - CA 730   2022-03-12   
747-836 5   6529 T-MOBILE USA, INC. 730   2022-03-12   
747-836 6   6529 T-MOBILE USA, INC. 730   2022-03-12   
747-836 7   6529 T-MOBILE USA, INC. 730   2022-03-12   
747-836 8   6529 T-MOBILE USA, INC. 730   2022-03-12   
747-836 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-08-21   
818-280 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-280 0   145J TERRA NOVA TELECOM INC. 730   2025-10-31   
818-280 1   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-280 2   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-280 3   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2011-06-05   
818-280 4   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-01-06   
818-280 5   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2012-05-14   
818-280 6   516C AT&T CORP. 730   2011-06-23   
818-280 7   6529 T-MOBILE USA, INC. 730   2005-01-17   
818-280 8   649C ONVOY, LLC - CA 730   2012-08-31   
818-280 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-27   
818-341 A NORGCA11DS1  9740 PACIFIC BELL 730      
818-349 A NORGCA11DS1  9740 PACIFIC BELL 730      

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.