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: 474

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-474 A Tuscola IL CHMPILCPOMD  224C ONVOY, LLC 370      
447-474 0 Tuscola IL CHMPILCPX5Y  624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-474 4 Tuscola IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-07-04   
447-474 5 Tuscola IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-07-04   
447-474 7 Tuscola IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-06-17   

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

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