Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4AIX callsign genealogy
Currently held by Dunnam Jr, Ricky 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 K4AIX's current licensee, walking backwards.
- Dunnam Jr, Ricky LTNgranted 2018-09-14cancelled 2020-10-14
Successor callsigns
Callsigns held now by people who previously held K4AIX.
- WINKLER, WINFRED SGAgranted 2002-05-17cancelled 2002-06-07
All historical holders
Every license row we've seen with the callsign K4AIX, oldest first.
- WINKLER, WINFRED S GA1998-11-30 → cancelled 2002-05-17
- WINKLER, WINFRED S GA2002-06-07 → cancelled 2014-06-10
- Dunnam Jr, Ricky L TN2020-10-14 active