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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-557 A Russell OH NRFDOHXAQMD  793K TWC IP ENABLED SERVICES, LLC 320   2025-02-11   
440-557 0 Russell OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2021-02-19   
440-557 1 Russell OH   0666 WINDSTREAM WESTERN RESERVE, INC. 320   2012-07-13   
440-557 2 Russell OH   464C ONVOY, LLC - OH 320   2014-08-16   
440-557 3 Russell OH   464C ONVOY, LLC - OH 320   2020-01-10   
440-557 4 Russell OH   464C ONVOY, LLC - OH 320   2020-01-10   
440-557 5 Russell OH   793K TWC IP ENABLED SERVICES, LLC 320   2007-03-14   
440-557 6 Russell OH   464C ONVOY, LLC - OH 320   2021-01-31   
440-557 7 Russell OH   508J CENTURYLINK COMMUNICATIONS, LLC 320   2015-08-28   
440-557 8 Russell OH   464C ONVOY, LLC - OH 320   2021-01-31   
440-557 9 Russell OH   793K TWC IP ENABLED SERVICES, LLC 320   2013-09-18   

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

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