Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8GCU callsign genealogy
Currently held by McDERMOTT, DAVID M
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 K8GCU's current licensee, walking backwards.
- McDERMOTT, DAVID MOKgranted 2009-11-30cancelled 2009-12-19
Successor callsigns
Callsigns held now by people who previously held K8GCU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8GCU, oldest first.
- CORRON, RUSSELL E TX1995-01-26 → cancelled 2007-01-27
- McDERMOTT, DAVID M OK2019-09-23 active