Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI7OAO callsign genealogy
Currently held by Donoho, David B
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 KI7OAO'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 KI7OAO.
- Donoho, David BUTgranted 2017-09-06cancelled 2018-04-28