Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO7DBF callsign genealogy
Currently held by O'Donnell, Robert M
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 KO7DBF's current licensee, walking backwards.
- ODonnell, Robert MMAgranted 2020-09-18cancelled 2020-10-09
Successor callsigns
Callsigns held now by people who previously held KO7DBF.
- ODonnell, Robert MMAgranted 2022-04-22