Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0MSO callsign genealogy
Currently held by Gudmunsen, Richard 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 W0MSO's current licensee, walking backwards.
- Gudmunsen, Richard GMNgranted 2002-05-13cancelled 2004-03-02
Successor callsigns
Callsigns held now by people who previously held W0MSO.
No current licensee on record previously held this callsign.