Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4CUB callsign genealogy
Currently held by SINGLETARY, WILLIAM 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 K4CUB's current licensee, walking backwards.
- ELLIOTT, THOMASKYgranted 2022-08-23cancelled 2023-05-16
Successor callsigns
Callsigns held now by people who previously held K4CUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4CUB, oldest first.
- SINGLETARY, WILLIAM J SC2010-04-30 → cancelled 2022-07-19
- ELLIOTT, THOMAS KY2023-05-16 active