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: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 708

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-708 A Malibu CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-708 0 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 1 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 2 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 3 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 4 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 5 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 6 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 7 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 8 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   
310-708 9 Malibu CA   649C ONVOY, LLC - CA 730   2023-08-26   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.