Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9OZF callsign genealogy
Currently held by CAIRNS, ROBERT H
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 KD9OZF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD9OZF.
- Cairns, Robert HWIgranted 2020-03-24cancelled 2023-01-18