Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9WKK callsign genealogy
Currently held by FENNELL, DONALD 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 K9WKK's current licensee, walking backwards.
- FENNELL, DONALD LINgranted 2007-08-22cancelled 2013-03-19
Successor callsigns
Callsigns held now by people who previously held K9WKK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9WKK, oldest first.
- FENNELL, JAMES IN2005-09-08 → cancelled 2013-01-29
- FENNELL, DONALD L IN2023-01-11 active