Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4ZJQ callsign genealogy
Currently held by MULLIN, JUSTIN C
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 KF4ZJQ'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 KF4ZJQ.
- MULLIN, JUSTIN CFLgranted 1998-10-14cancelled 2010-07-20