Local Calling Guide

Area code/prefix search

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

NXX: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-258 A Champaign-Urbana IL CHMPILWK4MD  475J CALLWORKS CORPORATION 370      
447-258 1 Champaign-Urbana IL   475J CALLWORKS CORPORATION 370   2023-08-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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