Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5RDT callsign genealogy
Currently held by LANGENEGGER, JACK
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 K5RDT's current licensee, walking backwards.
- KG5EENcancelledRed Daemon Contest ClubTXgranted 2014-10-01cancelled 2014-12-02
Successor callsigns
Callsigns held now by people who previously held K5RDT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5RDT, oldest first.
- LANGENEGGER, JACK TX1994-07-14 → cancelled 2006-07-15
- Red Daemon Contest Club TX2014-12-02 active