Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ADK callsign genealogy
Currently held by Klauser, Doris G
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 K7ADK's current licensee, walking backwards.
- KLAUSER, DORIS GUTgranted 2011-10-05cancelled 2011-11-15
Successor callsigns
Callsigns held now by people who previously held K7ADK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7ADK, oldest first.
- MARCURE, ROBERT F AL1999-07-22 → cancelled 2005-03-04
- Klauser, Doris G UT2021-08-20 active