Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4TTD callsign genealogy
Currently held by Kallner, Torbjorn D
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 KG4TTD's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KG4TTD.
- Kallner, Torbjorn DFLgranted 2013-09-17cancelled 2026-03-06