Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7EZ callsign genealogy
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 KD7EZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD7EZ.
- JAKOUBEK JR, JOHN RWAgranted 2009-04-25cancelled 2016-11-04
All historical holders
Every license row we've seen with the callsign KD7EZ, oldest first.
- JAKOUBEK JR, JOHN R WA2016-11-04 active
- —— → cancelled 1999-04-28