Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7YB callsign genealogy
Currently held by Debreceni, Michael J
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 AI7YB's current licensee, walking backwards.
- Debreceni, Michael JWAgranted 2024-03-12cancelled 2024-05-13
Successor callsigns
Callsigns held now by people who previously held AI7YB.
No current licensee on record previously held this callsign.