Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FRS callsign genealogy
Currently held by BUCHANAN JR, JACK W
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 K4FRS's current licensee, walking backwards.
- Fisher, Joseph KTNgranted 2020-07-27cancelled 2023-05-16
Successor callsigns
Callsigns held now by people who previously held K4FRS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4FRS, oldest first.
- BUCHANAN JR, JACK W TN2004-07-01 → cancelled 2016-07-15
- Fisher, Joseph K TN2023-05-16 active