Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5DDR callsign genealogy
Currently held by Donahue, Daniel 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 K5DDR's current licensee, walking backwards.
- Donahue, Daniel ROKgranted 2025-11-26cancelled 2026-01-06
Successor callsigns
Callsigns held now by people who previously held K5DDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5DDR, oldest first.
- Ruff, Charles D NM2010-06-15 → cancelled 2022-06-16
- Donahue, Daniel R OK2026-01-06 active