Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8JR callsign genealogy
Currently held by ROBERTSON, JOHN A
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 W8JR's current licensee, walking backwards.
- Kosik, SiegmundOHgranted 2023-03-21cancelled 2023-12-22
Successor callsigns
Callsigns held now by people who previously held W8JR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8JR, oldest first.
- RANALLI, JOSEPH A OH2006-08-25 → cancelled 2015-08-23
- ROBERTSON, JOHN A OH2017-09-12 → cancelled 2021-12-02
- Kosik, Siegmund OH2023-12-22 active