Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 217 [Rate centres in NPA 217] [Dial plan for NPA 217]

NXX: 482

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-482 A Mason City IL MSCYILXCDS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 374      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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