Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ5JRF callsign genealogy
Currently held by FORMOSA, JAMES R
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 KJ5JRF's current licensee, walking backwards.
- FORMOSA, JAMES RTXgranted 2023-08-17cancelled 2023-10-11
Successor callsigns
Callsigns held now by people who previously held KJ5JRF.
No current licensee on record previously held this callsign.