Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4SBF callsign genealogy
Currently held by BARBOT FORTUNA, SAMUEL
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 KP4SBF's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4SBF.
No current licensee on record previously held this callsign.