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: FTIRCAXFRS7

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
760-383 A Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-383 4 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 A Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 0 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 1 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 2 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 3 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 4 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 8 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      
760-386 9 Fort Irwin CA 4420 FRONTIER CALIFORNIA INC. 730      

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

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