Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SRB callsign genealogy
Currently held by Riaro, Scot
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 K0SRB's current licensee, walking backwards.
- Riaro, ScotMOgranted 2019-12-03cancelled 2022-01-05
Successor callsigns
Callsigns held now by people who previously held K0SRB.
- BOE, STEPHEN RMNgranted 2025-12-16
All historical holders
Every license row we've seen with the callsign K0SRB, oldest first.
- BOE, STEPHEN R WI2008-09-05 → cancelled 2016-02-19
- Riaro, Scot MO2022-01-05 active