Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4JTB callsign genealogy
Currently held by Brockman, Jarrod T
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 KM4JTB's current licensee, walking backwards.
- Brockman, Jarrod TKYgranted 2014-10-16cancelled 2021-02-23
Successor callsigns
Callsigns held now by people who previously held KM4JTB.
- BENAC, PETER PNCgranted 2015-05-09cancelled 2024-09-21
All historical holders
Every license row we've seen with the callsign KM4JTB, oldest first.
- BENAC, PETER P NC2015-04-14 → cancelled 2015-05-09
- Brockman, Jarrod T KY2021-02-23 active