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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Switch: KMBRMNXKRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
218-549 A Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 0 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 1 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 2 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 3 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 7 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 8 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      
218-549 9 Kimberly MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 636      

Last updated: Sat, 02 May 2026 12:20:53 UTC

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