Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI6OW callsign genealogy
Currently held by Sergeev, Ivan A
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 AI6OW's current licensee, walking backwards.
- Sergeev, Ivan ACAgranted 2015-12-23cancelled 2016-04-05
Successor callsigns
Callsigns held now by people who previously held AI6OW.
- Sergeev, Ivan AILgranted 2023-12-01