Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 218 [Rate centres in NPA 218] [Dial plan for NPA 218]

NXX: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-315 A Silver Bay MN   939H COMMIO, LLC 624      
218-315 0 Silver Bay MN DLTHMNEH8MD  939H COMMIO, LLC 624   2023-10-20   
218-315 8 Silver Bay MN DLTHMNEH8MD  939H COMMIO, LLC 624   2023-10-20   
218-315 9 Silver Bay MN   145J TERRA NOVA TELECOM INC. 624   2026-01-09   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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