Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5TBQ callsign genealogy
Currently held by FERSTL, THOMAS 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 KD5TBQ's current licensee, walking backwards.
- FERSTL, THOMAS DTXgranted 1998-03-23cancelled 2002-07-02
Successor callsigns
Callsigns held now by people who previously held KD5TBQ.
- FERSTL, THOMAS DTXgranted 2018-01-19