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: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-231 A Chatham IL SPFDILGI0MD  939H COMMIO, LLC 374      
447-231 0 Chatham IL SPFDILMBWMD  073H TELNYX LLC 374   2023-11-11   
447-231 1 Chatham IL SPFDILGI0MD  939H COMMIO, LLC 374   2022-06-16   
447-231 8 Chatham IL SPFDILGI0MD  939H COMMIO, LLC 374   2024-02-02   
447-231 9 Chatham IL SPFDILGI0MD  939H COMMIO, LLC 374   2024-02-02   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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