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: CLEVOHEKDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
440-999 7 Chagrin Falls OH 464C ONVOY, LLC - OH 320   2015-07-27   
440-999 8 Chagrin Falls OH 464C ONVOY, LLC - OH 320   2015-05-25   
440-999 9 Chagrin Falls OH 464C ONVOY, LLC - OH 320   2015-05-25   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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