Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN1UM callsign genealogy
Currently held by Buhyoff, Greg J
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 KN1UM's current licensee, walking backwards.
- Buhyoff, Gregory JMEgranted 2020-12-04
Successor callsigns
Callsigns held now by people who previously held KN1UM.
- Buhyoff, Gregory JMEgranted 2020-12-04