Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7DQ callsign genealogy
Currently held by GERHARDSTEIN, LAWRENCE H
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 K7DQ's current licensee, walking backwards.
- HANSEN, RONALD WCOgranted 2006-12-05cancelled 2010-03-06
Successor callsigns
Callsigns held now by people who previously held K7DQ.
- GERHARDSTEIN, LAWRENCE HWAgranted 2017-12-21
All historical holders
Every license row we've seen with the callsign K7DQ, oldest first.
- MUNGER, EUGENE H WA2005-01-25 → cancelled 2005-11-05
- GERHARDSTEIN, LAWRENCE H MT2007-11-24 → cancelled 2008-02-15
- HANSEN, RONALD W UT2019-12-27 active