Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG9OX callsign genealogy
Currently held by SEIDL, LARRY 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 KG9OX's current licensee, walking backwards.
- SEIDL, LARRY Lcancelled 1998-11-17
Successor callsigns
Callsigns held now by people who previously held KG9OX.
- Seidl, Larry LWIgranted 2020-04-17