Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IIO callsign genealogy
Currently held by BERRICH JR, GEORGE B
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 K4IIO's current licensee, walking backwards.
- BERRICH JR, GEORGE BFLgranted 2006-11-14cancelled 2009-06-16
Successor callsigns
Callsigns held now by people who previously held K4IIO.
- BERRICH, GEORGE BMIgranted 2022-07-01