Confidence: Medium · Source: FCC ULS · As of 2026-10-26
NA4FU callsign genealogy
Currently held by Headman, John M
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 NA4FU's current licensee, walking backwards.
- Headman, John MVAgranted 2026-06-16cancelled 2026-09-14
Successor callsigns
Callsigns held now by people who previously held NA4FU.
No current licensee on record previously held this callsign.