Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7JJD callsign genealogy
Currently held by Hsia, Joel
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 KJ7JJD's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KJ7JJD.
- Hsia, JoelUTgranted 2019-10-27cancelled 2019-11-26