Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4TCO callsign genealogy
Currently held by Williams, Jeremiah
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 KE4TCO's current licensee, walking backwards.
- Straub, Daniel EKYgranted 2024-10-24cancelled 2024-11-19
Successor callsigns
Callsigns held now by people who previously held KE4TCO.
- Williams, JeremiahARgranted 2014-11-01
All historical holders
Every license row we've seen with the callsign KE4TCO, oldest first.
- Williams, Jeremiah AR2014-10-15 → cancelled 2014-11-01
- Straub, Daniel E KY2024-11-19 active