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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: NRWLOHXAJMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
419-616 A Huron OH 464C ONVOY, LLC - OH 326   2025-01-15   
419-920 A Loudonville OH 464C ONVOY, LLC - OH 326      
567-367 A Republic OH 464C ONVOY, LLC - OH 326      
567-419 A Oak Harbor OH 464C ONVOY, LLC - OH 326      
567-458 A Willard OH 464C ONVOY, LLC - OH 326   2024-08-05   
567-557 A Milan OH 464C ONVOY, LLC - OH 326      
567-623 A Huron OH 464C ONVOY, LLC - OH 326   2025-01-15   
567-743 A Norwalk OH 464C ONVOY, LLC - OH 326   2025-01-15   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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