Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 440 [Rate centres in NPA 440] [Dial plan for NPA 440]

NXX: 379

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-379 A Kirtland OH   464C ONVOY, LLC - OH 320   2025-04-15   
440-379 0 Kirtland OH   001F BANDWIDTH.COM CLEC, LLC - OH 320   2011-04-03   
440-379 1 Kirtland OH   464C ONVOY, LLC - OH 320   2012-10-13   
440-379 2 Kirtland OH   624H ONVOY SPECTRUM, LLC 320   2021-11-19   
440-379 3 Kirtland OH   624H ONVOY SPECTRUM, LLC 320   2021-06-07   
440-379 4 Kirtland OH   7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 320   2005-07-19   
440-379 5 Kirtland OH   939H COMMIO, LLC 320   2023-11-04   
440-379 6 Kirtland OH   7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 320   2005-07-19   
440-379 7 Kirtland OH   793K TWC IP ENABLED SERVICES, LLC 320   2007-04-25   
440-379 8 Kirtland OH   464C ONVOY, LLC - OH 320   2020-05-18   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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