Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6SFK callsign genealogy
Currently held by Kilby III, Samuel 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 N6SFK's current licensee, walking backwards.
- Kilby III, Samuel FOKgranted 2007-08-22cancelled 2011-09-20
Successor callsigns
Callsigns held now by people who previously held N6SFK.
- Kilby III, Samuel FOKgranted 2016-07-29
All historical holders
Every license row we've seen with the callsign N6SFK, oldest first.
- WINTER, ROLAND P CA1999-04-09 → cancelled 2011-04-12
- Kilby III, Samuel F OK2011-09-20 → cancelled 2016-07-29