Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3TKW callsign genealogy
Currently held by SHUMATE, CLARKE 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 K3TKW's current licensee, walking backwards.
- Wargo, Thomas KPAgranted 2014-03-05cancelled 2014-03-25
Successor callsigns
Callsigns held now by people who previously held K3TKW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3TKW, oldest first.
- SHUMATE, CLARKE M FL1988-04-05 → cancelled 2000-04-06
- Wargo, Thomas K PA2024-01-11 active