Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN6YL callsign genealogy
Currently held by SAUERBERG, DONALD R
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 KN6YL's current licensee, walking backwards.
- Li, YanCAgranted 2022-02-28cancelled 2022-04-19
Successor callsigns
Callsigns held now by people who previously held KN6YL.
All historical holders
Every license row we've seen with the callsign KN6YL, oldest first.
- SAUERBERG, DONALD R CA2004-01-15 → cancelled 2006-03-17
- Li, Yan CA2022-04-19 → cancelled 2022-05-14