Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8ZWW callsign genealogy
Currently held by Trinklein, Timothy J
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 K8ZWW's current licensee, walking backwards.
- Trinklein, Timothy JMIgranted 2017-08-30cancelled 2020-03-27
Successor callsigns
Callsigns held now by people who previously held K8ZWW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8ZWW, oldest first.
- Ratliff, Daniel L OH2002-07-23 → cancelled 2014-07-24
- Trinklein, Timothy J MI2020-03-27 active