Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0OLB callsign genealogy
Currently held by Riebesell, Brian D
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 K0OLB's current licensee, walking backwards.
- Riebesell, Brian DCOgranted 2017-10-16cancelled 2018-01-13
Successor callsigns
Callsigns held now by people who previously held K0OLB.
No current licensee on record previously held this callsign.