Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9DRO callsign genealogy
Currently held by OSIER, DAVID 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 K9DRO's current licensee, walking backwards.
- Osier, David RWIgranted 2004-03-19cancelled 2009-09-26
Successor callsigns
Callsigns held now by people who previously held K9DRO.
No current licensee on record previously held this callsign.