Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4SFF callsign genealogy
Currently held by Favata, Sean 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 KM4SFF's current licensee, walking backwards.
- Favata, Sean FFLgranted 2014-11-24cancelled 2014-12-20
Successor callsigns
Callsigns held now by people who previously held KM4SFF.
No current licensee on record previously held this callsign.