Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4KFQ callsign genealogy
Currently held by FERGUSON, JOHN 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 N4KFQ's current licensee, walking backwards.
- FERGUSON, JOHN DFLgranted 2012-06-29cancelled 2012-07-20
Successor callsigns
Callsigns held now by people who previously held N4KFQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4KFQ, oldest first.
- FERGUSON, JOHN D FL1994-03-15 → cancelled 2006-03-16
- FERGUSON, JOHN D FL2023-05-18 active