Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4ZZO callsign genealogy
Currently held by MORAN, STEVEN 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 KO4ZZO's current licensee, walking backwards.
- MORAN, STEVEN MNCgranted 2017-04-24cancelled 2022-04-22
Successor callsigns
Callsigns held now by people who previously held KO4ZZO.
No current licensee on record previously held this callsign.