Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6DMT callsign genealogy
Currently held by SUDBERG, SIDNEY
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 K6DMT's current licensee, walking backwards.
- SUDBERG, SIDNEYCAgranted 2010-08-26cancelled 2011-08-06
Successor callsigns
Callsigns held now by people who previously held K6DMT.
No current licensee on record previously held this callsign.