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: 889

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-889 A West Los Angeles CA BELRCAXF47K  2319 FRONTIER CALIFORNIA INC. 730      
310-889 0 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
310-889 1 West Los Angeles CA BELRCAXF47K  2319 FRONTIER CALIFORNIA INC. 730      
310-889 2 West Los Angeles CA BELRCAXF47K  2319 FRONTIER CALIFORNIA INC. 730      
310-889 3 West Los Angeles CA BELRCAXF47K  2319 FRONTIER CALIFORNIA INC. 730      
310-889 4 West Los Angeles CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-889 5 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-889 6 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-889 7 West Los Angeles CA BELRCAXF47K  2319 FRONTIER CALIFORNIA INC. 730      
310-889 8 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-889 9 West Los Angeles CA BELRCAXF47K  2319 FRONTIER CALIFORNIA INC. 730      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.