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: LNCSCAXG94K

Remotes:

Switch Switch name Switch type
LKHGCAXFRS1  LAKE HUGHES  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-723 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-726 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-728 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-729 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-940 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-942 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-945 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-948 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-949 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      
661-951 A Lancaster CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.