Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4TFB callsign genealogy
Currently held by COY II, ROBERT D
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 KF4TFB'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 KF4TFB.
- COY II, ROBERT DALgranted 2007-04-26cancelled 2016-12-08