Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9PWB callsign genealogy
Currently held by Thomas, Jeffery
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 KD9PWB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD9PWB.
- Thomas, JefferyORgranted 2020-07-21cancelled 2021-12-08
All historical holders
Every license row we've seen with the callsign KD9PWB, oldest first.
- Thomas, Jeffery OR2020-07-21 → cancelled 2021-12-07
- Thomas, Jeffery UT2022-01-28 active