Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU5JFR callsign genealogy
Currently held by Remark, John F
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 KU5JFR's current licensee, walking backwards.
- Remark, John FTXgranted 2015-06-22cancelled 2015-07-10
Successor callsigns
Callsigns held now by people who previously held KU5JFR.
No current licensee on record previously held this callsign.