Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4TRC callsign genealogy
Currently held by Blair, David M
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 KB4TRC's current licensee, walking backwards.
- Blair, David MKYgranted 2023-06-22cancelled 2023-07-14
Successor callsigns
Callsigns held now by people who previously held KB4TRC.
No current licensee on record previously held this callsign.