Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6USK callsign genealogy
Currently held by SARMIENTO JR, AUGUSTO
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 KF6USK's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF6USK.
- SARMIENTO JR, AUGUSTOCAgranted 2009-01-06cancelled 2016-05-03