Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9BTC callsign genealogy
Currently held by NICHOLS, BRIAN (Rex) R
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 K9BTC's current licensee, walking backwards.
- NICHOLS, BRIAN RINgranted 2018-11-27cancelled 2019-03-05
Successor callsigns
Callsigns held now by people who previously held K9BTC.
- NICHOLS, BRIAN (Rex) RINgranted 2026-08-18