Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9GFB callsign genealogy
Currently held by GRIGOROPOULOS, ANTONIOS
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 KB9GFB's current licensee, walking backwards.
- Bittles, George FINgranted 2001-03-07cancelled 2010-06-26
Successor callsigns
Callsigns held now by people who previously held KB9GFB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9GFB, oldest first.
- GRIGOROPOULOS, ANTONIOS IL1991-05-14 → cancelled 2003-05-15
- BITTLES, GEORGE F IN2020-04-04 active