Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0JFM callsign genealogy
Currently held by Maruska, John 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 W0JFM's current licensee, walking backwards.
- Maruska, John FMOgranted 2013-04-18cancelled 2013-06-22
Successor callsigns
Callsigns held now by people who previously held W0JFM.
No current licensee on record previously held this callsign.