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: STBNMNXSRS4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
952-446 A Twin Cities MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 628      
952-446 1 Twin Cities MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 628      
952-446 2 Twin Cities MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 628      
952-446 4 Twin Cities MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 628      
952-446 8 Twin Cities MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 628      
952-446 9 Twin Cities MN 1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 628      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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