Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FIO callsign genealogy
Currently held by FIORINO, PAUL
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 K4FIO's current licensee, walking backwards.
- FIORINO, PAULVAgranted 2017-12-14cancelled 2018-01-03
Successor callsigns
Callsigns held now by people who previously held K4FIO.
No current licensee on record previously held this callsign.