Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9VDU callsign genealogy
Currently held by Clark, Colby A
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 K9VDU's current licensee, walking backwards.
- Clark, Colby ACAgranted 2008-02-28cancelled 2008-04-15
Successor callsigns
Callsigns held now by people who previously held K9VDU.
No current licensee on record previously held this callsign.