Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4CMD callsign genealogy
Currently held by ROBISON JR, WILLIAM A
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 KF4CMD'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 KF4CMD.
- W4RRCactiveRIDGE AMATEUR RADIO CLUBSCgranted 2017-05-15