Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TKS callsign genealogy
Currently held by Shoemaker, Thomas K
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 W4TKS's current licensee, walking backwards.
- Shoemaker, Thomas KGAgranted 2014-05-01cancelled 2014-06-06
Successor callsigns
Callsigns held now by people who previously held W4TKS.
- LOOMIS JR, JOE WFLgranted 2016-10-12
All historical holders
Every license row we've seen with the callsign W4TKS, oldest first.
- JONES, CLAUDE L FL1988-04-26 → cancelled 2000-04-27
- LOOMIS JR, JOE W FL2002-03-06 → cancelled 2006-12-23
- Shoemaker, Thomas K NC2025-01-14 active