Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6DSA callsign genealogy
Currently held by SLACKIE, JOSEPH
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 K6DSA's current licensee, walking backwards.
- ADRIAANSE, DAVID SAZgranted 2017-11-03cancelled 2017-11-25
Successor callsigns
Callsigns held now by people who previously held K6DSA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6DSA, oldest first.
- SLACKIE, JOSEPH CA1994-06-17 → cancelled 2006-06-20
- Adriaanse, David S AZ2017-11-25 active