Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4CFQ callsign genealogy
Currently held by Graham, Bob 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 KO4CFQ'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 KO4CFQ.
- Graham, Bob DTNgranted 2020-04-10