Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6DTK callsign genealogy
Currently held by KUPFER, DAVID T
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 K6DTK's current licensee, walking backwards.
- Kupfer, David TCAgranted 2006-03-06cancelled 2006-04-01
Successor callsigns
Callsigns held now by people who previously held K6DTK.
No current licensee on record previously held this callsign.