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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: DLTHMNEHFMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
218-315 9 Silver Bay MN 145J TERRA NOVA TELECOM INC. 624   2026-01-09   
218-355 6 Duluth MN 145J TERRA NOVA TELECOM INC. 624   2026-03-29   
218-522 A Duluth MN 145J TERRA NOVA TELECOM INC. 624      
218-667 A Coleraine MN 145J TERRA NOVA TELECOM INC. 624      
218-750 6 Virginia MN 145J TERRA NOVA TELECOM INC. 624   2026-05-01   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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