Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 218 [Rate centres in NPA 218] [Dial plan for NPA 218]

NXX: 323

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-323 A Isabella MN ISBLMNXIRS1  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 624      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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