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: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-312 A Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2025-06-29   
447-312 7 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2025-06-29   
447-312 8 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2025-06-29   
447-312 9 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2025-06-29   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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