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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-900 A Amherst OH   464C ONVOY, LLC - OH 320   2026-02-20   
440-900 0 Amherst OH   464C ONVOY, LLC - OH 320   2026-02-20   
440-900 9 Amherst OH   464C ONVOY, LLC - OH 320   2026-02-20   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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