Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TOE callsign genealogy
Currently held by Dotson Jr, James W
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 K4TOE's current licensee, walking backwards.
- Dotson Jr, James WKYgranted 2017-01-19cancelled 2021-02-17
Successor callsigns
Callsigns held now by people who previously held K4TOE.
- TOENSING, MARKMTgranted 2023-04-19
All historical holders
Every license row we've seen with the callsign K4TOE, oldest first.
- SMITH, JONATHAN W TN1987-12-01 → cancelled 1999-12-02
- TOENSING, MARK MT2012-06-12 → cancelled 2013-03-29
- Dotson Jr, James W KY2021-02-17 active