Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4NFM callsign genealogy
Currently held by MARKO, NICHOLAS F
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 W4NFM's current licensee, walking backwards.
- Marko, Nicholas FVAgranted 2023-06-24cancelled 2023-07-14
Successor callsigns
Callsigns held now by people who previously held W4NFM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4NFM, oldest first.
- FERRIS, RICHARD C VA1987-11-10 → cancelled 1999-11-11
- MARKO, NICHOLAS F VA2023-07-14 active