Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RDT callsign genealogy
Currently held by Thomas, Richard D
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 K4RDT's current licensee, walking backwards.
- Terrelonge, Richard DFLgranted 2010-07-26cancelled 2010-08-28
Successor callsigns
Callsigns held now by people who previously held K4RDT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RDT, oldest first.
- Thomas, Richard D AL2002-12-07 → cancelled 2004-02-15
- Terrelonge, Richard D FL2021-03-31 active