Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-424 A Mount Zion IL SPFDILESXQX  624H ONVOY SPECTRUM, LLC 374   2024-06-28   
447-424 0 Mount Zion IL SPFDILESXQX  624H ONVOY SPECTRUM, LLC 374   2024-06-28   
447-424 4 Mount Zion IL   145J TERRA NOVA TELECOM INC. 374   2025-06-01   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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