Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7RZU callsign genealogy
Currently held by Roisum, Thomas B
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 KJ7RZU's current licensee, walking backwards.
- Roisum, Thomas BAZgranted 2019-01-31cancelled 2020-11-04
Successor callsigns
Callsigns held now by people who previously held KJ7RZU.
No current licensee on record previously held this callsign.