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: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 350

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-350 A Northridge CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
818-350 0 Northridge CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
818-350 1 Northridge CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
818-350 2 Northridge CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
818-350 3 Northridge CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
818-350 4 Northridge CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
818-350 5 Northridge CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
818-350 6 Northridge CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
818-350 7 Northridge CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
818-350 8 Northridge CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
818-350 9 Northridge CA SIMICACNGT1  6529 T-MOBILE USA, INC. 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.