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.

Lomita, CA

<< 1 2 3

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
424-516 3   624H ONVOY SPECTRUM, LLC 730   2025-01-23   
424-516 4   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2025-08-26   
424-516 5   649C ONVOY, LLC - CA 730   2026-01-04   
424-516 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-12-23   
424-516 7   649C ONVOY, LLC - CA 730   2025-09-27   
424-516 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-09-14   
424-516 9   6529 T-MOBILE USA, INC. 730   2024-11-09   
424-667 A LSANCAJWIMD  965H FRACTEL, LLC 730      
424-667 0   073H TELNYX LLC 730   2021-05-23   
424-667 1   939H COMMIO, LLC 730   2024-01-20   
424-667 2   649C ONVOY, LLC - CA 730   2021-07-12   
424-667 3   516J TON80 COMMUNICATIONS, LLC 730   2021-06-02   
424-667 4   649C ONVOY, LLC - CA 730   2021-07-12   
424-667 5   649C ONVOY, LLC - CA 730   2021-07-12   
424-667 6   649C ONVOY, LLC - CA 730   2021-07-12   
424-667 7   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2022-06-17   
424-667 8   965H FRACTEL, LLC 730   2021-03-06   
424-667 9   553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-02   
424-688 A LSANCAJWIMD  965H FRACTEL, LLC 730      
424-688 0   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2020-09-09   
424-688 1   649C ONVOY, LLC - CA 730   2021-08-08   
424-688 2   649C ONVOY, LLC - CA 730   2025-10-26   
424-688 3   649C ONVOY, LLC - CA 730   2020-12-04   
424-688 4   145J TERRA NOVA TELECOM INC. 730   2024-07-29   
424-688 5   649C ONVOY, LLC - CA 730   2020-12-04   
424-688 6   649C ONVOY, LLC - CA 730   2021-08-08   
424-688 7   649C ONVOY, LLC - CA 730   2021-08-08   
424-688 8   965H FRACTEL, LLC 730   2020-08-06   
424-688 9   649C ONVOY, LLC - CA 730   2021-08-08   

<< 1 2 3

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.