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: MPLSMNFD2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
320-408 A Plato MN 508J CENTURYLINK COMMUNICATIONS, LLC 628      
507-570 A Green Isle MN 508J CENTURYLINK COMMUNICATIONS, LLC 628      
651-478 A Twin Cities MN 508J CENTURYLINK COMMUNICATIONS, LLC 628      
763-270 A Twin Cities MN 508J CENTURYLINK COMMUNICATIONS, LLC 628      
763-290 A Cambridge MN 508J CENTURYLINK COMMUNICATIONS, LLC 628      
952-251 A Twin Cities MN 508J CENTURYLINK COMMUNICATIONS, LLC 628      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.