Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3TRF callsign genealogy
Currently held by Ulrich, Kyle P
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 KB3TRF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB3TRF.
- Ulrich, Kyle PNMgranted 2020-04-10