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: WADNMNWANMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
218-669 4 Roseau MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2022-11-05   
218-712 7 Warren MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2022-12-03   
218-755 5 Bemidji MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2004-12-14   
218-789 2 Sabin MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2012-04-14   
218-789 4 Sabin MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2005-04-01   
218-866 1 Crosby MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2023-02-25   
218-887 1 Aitkin MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2023-02-25   
218-894 7 Staples MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2004-12-14   
218-935 1 Mahnomen MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2006-10-25   
218-963 5 Nisswa MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2004-12-13   
218-986 5 Warroad MN 5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2022-06-12   
701-350 3 Devils Lake ND 8054 LEVEL 3 COMMUNICATIONS, LLC - ND 636   2022-02-19   
701-971 6 Wahpeton ND 8054 LEVEL 3 COMMUNICATIONS, LLC - ND 636   2023-01-16   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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