Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4RDH callsign genealogy
Currently held by FRANKS JR, DONALD B
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 KF4RDH'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 KF4RDH.
- FRANKS JR, DONALD BSCgranted 2014-12-09