Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB6UMI callsign genealogy
Currently held by High, Steven 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 KB6UMI's current licensee, walking backwards.
- High, Steven RCAgranted 2020-05-15cancelled 2020-06-27
Successor callsigns
Callsigns held now by people who previously held KB6UMI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB6UMI, oldest first.
- HIGH, RICHARD R CA1998-06-15 → cancelled 2010-06-16
- High, Steven R CA2020-06-27 active