Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6GCN callsign genealogy
Currently held by Derbacher, Robert E
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 K6GCN's current licensee, walking backwards.
- Derbacher, Robert ECAgranted 2004-08-10cancelled 2008-08-23
Successor callsigns
Callsigns held now by people who previously held K6GCN.
- CUNNINGHAM, ROBERT JHIgranted 2024-02-13
All historical holders
Every license row we've seen with the callsign K6GCN, oldest first.
- CUNNINGHAM, ROBERT J HI1999-08-05 → cancelled 2002-03-30
- Derbacher, Robert E CA2018-08-01 active