Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB6RF callsign genealogy
Currently held by Sannala, Mikko
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 AB6RF's current licensee, walking backwards.
- Sannala, MikkoCAgranted 2017-12-18cancelled 2018-01-09
Successor callsigns
Callsigns held now by people who previously held AB6RF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB6RF, oldest first.
- SUTTON, ROBERT B CA2002-12-04 → cancelled 2015-03-03
- Sannala, Mikko CA2018-01-09 active