Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI7OJO callsign genealogy
Currently held by Ramsbacher, David J
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 KI7OJO's current licensee, walking backwards.
- Ramsbacher, David JMTgranted 2017-03-30cancelled 2017-06-20
Successor callsigns
Callsigns held now by people who previously held KI7OJO.
- Ramsbacher, David JMTgranted 2017-03-30cancelled 2017-07-11