Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0DJC callsign genealogy
Currently held by Collins, Donald J
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 KD0DJC's current licensee, walking backwards.
- Collins, Donald JMNgranted 2018-05-18cancelled 2018-06-12
Successor callsigns
Callsigns held now by people who previously held KD0DJC.
- Trullinger, Mark JIAgranted 2018-03-26
All historical holders
Every license row we've seen with the callsign KD0DJC, oldest first.
- Trullinger, Mark J IA2008-03-13 → cancelled 2008-06-06
- Collins, Donald J MN2018-06-12 active