Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5DRK callsign genealogy
Currently held by Kollman, 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 W5DRK's current licensee, walking backwards.
- Kollman, David RTXgranted 2008-01-30cancelled 2012-11-02
Successor callsigns
Callsigns held now by people who previously held W5DRK.
No current licensee on record previously held this callsign.