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: GRHLCAXF36J

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
818-360 A San Fernando: Granada Hills DA CA 2319 FRONTIER CALIFORNIA INC. 730      
818-363 A San Fernando: Granada Hills DA CA 2319 FRONTIER CALIFORNIA INC. 730      
818-366 A San Fernando: Granada Hills DA CA 2319 FRONTIER CALIFORNIA INC. 730      
818-368 A San Fernando: Granada Hills DA CA 2319 FRONTIER CALIFORNIA INC. 730      
818-831 A San Fernando: Granada Hills DA CA 2319 FRONTIER CALIFORNIA INC. 730      
818-832 A San Fernando: Granada Hills DA CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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