Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4SCH callsign genealogy
Currently held by SCHICKLER, SERGIO
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 KN4SCH's current licensee, walking backwards.
- SCHICKLER, SERGIOFLgranted 2018-07-03cancelled 2018-07-24
Successor callsigns
Callsigns held now by people who previously held KN4SCH.
No current licensee on record previously held this callsign.