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: 920

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-920 A Willoughby OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2025-05-15   
440-920 9 Willoughby OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2025-05-15   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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