Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4SOY callsign genealogy
Currently held by ROSS, CARL W
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 KM4SOY's current licensee, walking backwards.
- ROSS, CARL WSCgranted 2016-03-14cancelled 2016-03-22
Successor callsigns
Callsigns held now by people who previously held KM4SOY.
No current licensee on record previously held this callsign.