Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS0LAR callsign genealogy
Currently held by ROBERTS, CHARLES B
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 KS0LAR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KS0LAR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KS0LAR, oldest first.
- KANSAS STATE UNIVERSITY SOLAR CAR TEAM KS2009-05-29 → cancelled 2021-05-13
- ROBERTS, CHARLES B VA2022-02-08 active