Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD2DRK callsign genealogy
Currently held by Koch, Deborah R
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 KD2DRK's current licensee, walking backwards.
- Koch, Deborah RNYgranted 2024-10-29cancelled 2025-05-16
Successor callsigns
Callsigns held now by people who previously held KD2DRK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD2DRK, oldest first.
- Cywin, Stephen A NJ2013-03-15 → cancelled 2025-03-18
- Koch, Deborah R NY2025-05-16 active