Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4BG callsign genealogy
Currently held by Riech, Carlos F
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 AI4BG's current licensee, walking backwards.
- RIECH, CARLOS FFLgranted 1997-02-12cancelled 2003-09-08
- KR4VQno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AI4BG.
No current licensee on record previously held this callsign.