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.
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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: Thu, 29 Jan 2026 14:35:03 UTC

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