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: FORSOHXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
419-273 A Forest OH 0615 FRONTIER NORTH, INC. - OH 326      
419-273 1 Forest OH 0615 FRONTIER NORTH, INC. - OH 326      
419-273 2 Forest OH 0615 FRONTIER NORTH, INC. - OH 326      
419-273 3 Forest OH 0615 FRONTIER NORTH, INC. - OH 326      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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