Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6FSO callsign genealogy
Currently held by COBB, JOEL 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 K6FSO's current licensee, walking backwards.
- Cobb, Joel FCAgranted 2012-11-09cancelled 2013-01-08
Successor callsigns
Callsigns held now by people who previously held K6FSO.
- COBB, JOEL FMTgranted 2018-03-20