Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA7JDK callsign genealogy
Currently held by KEIM, JASON
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 WA7JDK's current licensee, walking backwards.
- KEIM, JASONWAgranted 2020-07-17cancelled 2026-05-19
Successor callsigns
Callsigns held now by people who previously held WA7JDK.
No current licensee on record previously held this callsign.