Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6UBY callsign genealogy
Currently held by BLUM, DONALD 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 N6UBY's current licensee, walking backwards.
- PRAGER, TAMMI LCAgranted 2014-03-06cancelled 2015-07-21
Successor callsigns
Callsigns held now by people who previously held N6UBY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6UBY, oldest first.
- BLUM, DONALD R CA1989-01-17 → cancelled 2001-01-18
- PRAGER, TAMMI L CA2025-07-29 active