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: PSTNMNXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
507-765 A Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-765 2 Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-765 3 Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-765 4 Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-765 5 Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-765 8 Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-765 9 Preston MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.