Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9SWE callsign genealogy
Currently held by Frick, Mathias B
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 K9SWE's current licensee, walking backwards.
- Suvanto, MiikkaWIgranted 2025-12-16cancelled 2026-01-03
Successor callsigns
Callsigns held now by people who previously held K9SWE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9SWE, oldest first.
- Frick, Mathias B GA2013-01-01 → cancelled 2025-01-03
- Suvanto, Miikka WI2026-01-03 active