Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO0LJS callsign genealogy
Currently held by SANDS, JASON H
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 KO0LJS's current licensee, walking backwards.
- SANDS, JASON HARgranted 2019-08-26cancelled 2019-09-17
Successor callsigns
Callsigns held now by people who previously held KO0LJS.
No current licensee on record previously held this callsign.