Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7RYF callsign genealogy
Currently held by Heinz, Christopher 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 KJ7RYF's current licensee, walking backwards.
- Heinz, Christopher DWAgranted 2019-08-26cancelled 2020-10-29
Successor callsigns
Callsigns held now by people who previously held KJ7RYF.
- Heinz, Christopher DWYgranted 2021-03-20