Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9UOK callsign genealogy
Currently held by OEZER, JOHN M
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 K9UOK's current licensee, walking backwards.
- INGRAM, WENDELL EINgranted 2005-03-02cancelled 2009-09-11
Successor callsigns
Callsigns held now by people who previously held K9UOK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9UOK, oldest first.
- OEZER, JOHN M IN1996-02-05 → cancelled 2008-02-06
- INGRAM, WENDELL E IN2019-07-30 active