Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV9K callsign genealogy
Currently held by DE MARS, DOUGLAS L
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 KV9K's current licensee, walking backwards.
- Alexander, Ohlen MCAgranted 2006-08-31cancelled 2011-09-20
Successor callsigns
Callsigns held now by people who previously held KV9K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KV9K, oldest first.
- DE MARS, DOUGLAS L WI1999-07-19 → cancelled 2011-07-20
- Alexander, Ohlen M CA2021-07-27 active