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: OWTNMNOW3MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
507-783 A Windom MN 6701 AERIAL COMMUNICATIONS, INC. 620      
507-783 4 Windom MN 6701 AERIAL COMMUNICATIONS, INC. 620   2022-06-18   
507-783 5 Windom MN 6701 AERIAL COMMUNICATIONS, INC. 620   2022-06-18   
507-783 6 Windom MN 6701 AERIAL COMMUNICATIONS, INC. 620   2022-06-18   
507-783 9 Windom MN 6701 AERIAL COMMUNICATIONS, INC. 620   2021-04-16   
507-832 9 Windom MN 6701 AERIAL COMMUNICATIONS, INC. 620   2006-01-26   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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