Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1JJS callsign genealogy
Currently held by Marumoto, Mark 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 W1JJS's current licensee, walking backwards.
- Marumoto, Mark MNVgranted 2014-03-11cancelled 2014-03-29
Successor callsigns
Callsigns held now by people who previously held W1JJS.
No current licensee on record previously held this callsign.