Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0LSU callsign genealogy
Currently held by Brock, Jonathan L
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 K0LSU's current licensee, walking backwards.
- Brock, Jonathan LMOgranted 2019-02-19cancelled 2019-03-09
Successor callsigns
Callsigns held now by people who previously held K0LSU.
No current licensee on record previously held this callsign.