Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7SBU callsign genealogy
Currently held by FELIX, ROY 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 W7SBU's current licensee, walking backwards.
- Carter, Russell AWAgranted 2017-04-27cancelled 2017-05-16
Successor callsigns
Callsigns held now by people who previously held W7SBU.
- Carter, Russell AWAgranted 2020-02-01
All historical holders
Every license row we've seen with the callsign W7SBU, oldest first.
- FELIX, ROY H OR1996-02-05 → cancelled 2008-02-06
- Carter, Russell A WA2017-05-16 → cancelled 2020-02-01