Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6UMO callsign genealogy
Currently held by Bornstein, Michael
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 K6UMO's current licensee, walking backwards.
- Bornstein, MichaelCAgranted 2007-11-13cancelled 2007-12-04
Successor callsigns
Callsigns held now by people who previously held K6UMO.
No current licensee on record previously held this callsign.