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: MDFDMNAT6MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
507-200 A Owatonna MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-230 A Fairmont MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-321 A Northfield MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-390 A Owatonna MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-520 A Blue Earth MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-521 A Waseca MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-589 A Austin MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-600 A Blue Earth MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-661 A Waterville MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
507-850 A Northfield MN 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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