Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0TJ callsign genealogy
Currently held by CLAY, DON G
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KC0TJ's current licensee, walking backwards.
- CLAY, DON GMNgranted 2008-09-06cancelled 2011-07-08
Successor callsigns
Callsigns held now by people who previously held KC0TJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0TJ, oldest first.
- CLAY, RICHARD R MN2006-08-23 → cancelled 2009-07-17
- CLAY, DON G MN2021-04-10 active