Local Calling Guide

Area code/prefix search

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NPA: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-310 A Springfield IL   984E BANDWIDTH.COM CLEC, LLC - IL 374   2025-07-07   
447-310 0 Springfield IL   984E BANDWIDTH.COM CLEC, LLC - IL 374   2025-07-07   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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