Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9WAN callsign genealogy
Currently held by Null, WILLIAM 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 K9WAN's current licensee, walking backwards.
- NULL, WILLIAM AILgranted 2017-07-13cancelled 2018-01-30
Successor callsigns
Callsigns held now by people who previously held K9WAN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9WAN, oldest first.
- ROCK ISLAND ARSENAL IA1994-06-15 → cancelled 2006-06-16
- Null, WILLIAM A IL2018-01-30 active