Callsign: N8UMB Class: Technician Name: CHOWNING, MARK E Address: 313 SPRING DRIVE City: ST CHARLES State: MO Zipcode: 63303 Status: Active Grant Date: 01/10/2024 Expires: 01/10/2034 Uls: FCC Info
Ham call sign N8UMB in ST CHARLES, MO
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