Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RUK callsign genealogy
Currently held by BREAZEALE SR, THOMAS N
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 K4RUK's current licensee, walking backwards.
- Tomek, Jonathan MVAgranted 2017-02-21cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held K4RUK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RUK, oldest first.
- BREAZEALE SR, THOMAS N TN2006-10-06 → cancelled 2019-02-12
- Tomek, Jonathan M VA2019-02-20 active