Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9JB callsign genealogy
Currently held by Bolin, Justin M
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 KC9JB's current licensee, walking backwards.
- Bolin, Justin MMOgranted 2022-05-10cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held KC9JB.
No current licensee on record previously held this callsign.