Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI6CO callsign genealogy
Currently held by Dumont, Michael D
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 AI6CO's current licensee, walking backwards.
- Dumont, Michael DCAgranted 2014-04-08cancelled 2014-07-22
Successor callsigns
Callsigns held now by people who previously held AI6CO.
No current licensee on record previously held this callsign.