Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9TCO callsign genealogy
Currently held by Bray, David 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 K9TCO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K9TCO.
No current licensee on record previously held this callsign.