Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO5RBY callsign genealogy
Currently held by Guy, Steven C
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 KO5RBY's current licensee, walking backwards.
- Guy, Steven CTXgranted 2026-04-21cancelled 2026-05-09
Successor callsigns
Callsigns held now by people who previously held KO5RBY.
No current licensee on record previously held this callsign.