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: 237

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-237 A Penfield IL CHMPILCPOMD  224C ONVOY, LLC 370      
447-237 0 Penfield IL CHMPILCPX5Y  624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-237 4 Penfield IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-06-17   

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

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