Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0ONN callsign genealogy
Currently held by Sibell, Bruce R
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 W0ONN's current licensee, walking backwards.
- Sibell, Bruce RTXgranted 2024-06-15cancelled 2026-03-13
Successor callsigns
Callsigns held now by people who previously held W0ONN.
No current licensee on record previously held this callsign.