Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0CTM callsign genealogy
Currently held by UNRUH, THOMAS E
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 K0CTM's current licensee, walking backwards.
- MILES, CALEBMOgranted 2024-03-06cancelled 2024-03-26
Successor callsigns
Callsigns held now by people who previously held K0CTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0CTM, oldest first.
- UNRUH, THOMAS E CO1997-12-12 → cancelled 1999-05-16
- MILES, CALEB MO2024-03-26 active