Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1BYR callsign genealogy
Currently held by Roosa, Byron E
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 K1BYR's current licensee, walking backwards.
- Roosa, Byron EVTgranted 2016-09-26cancelled 2016-10-15
Successor callsigns
Callsigns held now by people who previously held K1BYR.
No current licensee on record previously held this callsign.