Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KF5TDR callsign genealogy
Currently held by Barnhart Jr, Warren E
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 KF5TDR's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF5TDR.
- Barnhart Jr, Warren ETXgranted 2013-02-05cancelled 2025-02-06