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.

Switch: WLANCAXFDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
310-231 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-235 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-268 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-312 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-444 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-445 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-473 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-477 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-478 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-479 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 0 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 1 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 3 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 4 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 5 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 6 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 7 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 8 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-575 9 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-914 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 1 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 2 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 3 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 4 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 5 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 6 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 8 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-966 9 West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      
310-996 A West Los Angeles CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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