Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7DRO callsign genealogy
Currently held by MC DONALD, RYAN E
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 KB7DRO's current licensee, walking backwards.
- OWEN, DONALD RWAgranted 2015-05-19cancelled 2015-06-16
Successor callsigns
Callsigns held now by people who previously held KB7DRO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7DRO, oldest first.
- MC DONALD, RYAN E WA1988-01-12 → cancelled 2000-01-13
- OWEN, DONALD R ID2015-06-16 active