Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5TDF callsign genealogy
Currently held by Brooks, Ronald 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 K5TDF's current licensee, walking backwards.
- Brooks, Ronald DTXgranted 2016-11-22cancelled 2017-04-18
Successor callsigns
Callsigns held now by people who previously held K5TDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5TDF, oldest first.
- ROWLAND, MICHAEL W AR1999-05-26 → cancelled 2011-05-27
- Brooks, Ronald D TX2017-04-18 active