Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ0ADO callsign genealogy
Currently held by SEEFELDT, JON L
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 KZ0ADO's current licensee, walking backwards.
- SEEFELDT, JON LMOgranted 1997-06-16cancelled 2003-04-18
Successor callsigns
Callsigns held now by people who previously held KZ0ADO.
- SEEFELDT, JON LMOgranted 2013-05-03cancelled 2025-05-20