Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ6COF callsign genealogy
Currently held by Sandberg, Ken
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 KJ6COF's current licensee, walking backwards.
- Sandberg, KenCAgranted 2009-10-05cancelled 2009-10-06
Successor callsigns
Callsigns held now by people who previously held KJ6COF.
- Sandberg, KenCAgranted 2009-10-05cancelled 2009-10-08