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: 672

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-672 A Duluth MN DLTHMNEHHMD  475J CALLWORKS CORPORATION 624   2024-02-12   
218-672 1 Duluth MN DLTHMNEHHMD  475J CALLWORKS CORPORATION 624   2024-02-12   

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

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