Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6JFR callsign genealogy
Currently held by ROBINSON, JEFFREY 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 K6JFR's current licensee, walking backwards.
- Rodriguez, Joseph FCAgranted 2024-09-24cancelled 2025-12-12
Successor callsigns
Callsigns held now by people who previously held K6JFR.
- ROBINSON, JEFFREY FCAgranted 2023-09-15
All historical holders
Every license row we've seen with the callsign K6JFR, oldest first.
- ROBINSON, JEFFREY F CA2021-01-12 → cancelled 2023-09-15
- Rodriguez, Joseph F CA2025-12-12 active