Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5TCO callsign genealogy
Currently held by Cole, Terry L
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 K5TCO's current licensee, walking backwards.
- Cole, Terry LMSgranted 2021-10-08cancelled 2021-11-06
Successor callsigns
Callsigns held now by people who previously held K5TCO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5TCO, oldest first.
- DONNELL, WINONA C TX1997-03-03 → cancelled 2009-03-04
- Cole, Terry L MS2021-11-06 active