Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0TDR callsign genealogy
Currently held by Robason, Troy D
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 K0TDR's current licensee, walking backwards.
- Robason, Troy DCOgranted 2017-03-07cancelled 2017-03-28
Successor callsigns
Callsigns held now by people who previously held K0TDR.
No current licensee on record previously held this callsign.