Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7DPS callsign genealogy
Currently held by WACKER, JON 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 KD7DPS's current licensee, walking backwards.
- SHAFER, DAVID PAZgranted 2015-11-03cancelled 2022-04-29
Successor callsigns
Callsigns held now by people who previously held KD7DPS.
- WACKER, JON LORgranted 2018-02-02
All historical holders
Every license row we've seen with the callsign KD7DPS, oldest first.
- WACKER, JON L OR1999-03-01 → cancelled 2008-04-26
- SHAFER, DAVID P AZ2022-04-29 active