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: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-312 A Hibbing MN   184D ONVOY, LLC - MN 624      
218-312 1 Hibbing MN   184D ONVOY, LLC - MN 624      
218-312 3 Hibbing MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 624      
218-312 8 Hibbing MN   184D ONVOY, LLC - MN 624      
218-312 9 Hibbing MN   145J TERRA NOVA TELECOM INC. 624   2026-01-19   

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

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