Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6MSO callsign genealogy
Currently held by OSBORN JR, ROBERT G
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 N6MSO's current licensee, walking backwards.
- KJ6UOFcancelledUSS Lucid Amateur Radio ClubCAgranted 2012-02-27cancelled 2012-03-27
Successor callsigns
Callsigns held now by people who previously held N6MSO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6MSO, oldest first.
- OSBORN JR, ROBERT G CA1987-11-17 → cancelled 1999-11-18
- USS Lucid Amateur Radio Club CA2022-02-11 active