Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9OZZ callsign genealogy
Currently held by DONAHUE, ROBERT T
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 K9OZZ's current licensee, walking backwards.
- Donahue, Robert TAZgranted 2005-11-09cancelled 2006-02-04
Successor callsigns
Callsigns held now by people who previously held K9OZZ.
No current licensee on record previously held this callsign.