Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6SGT callsign genealogy
Currently held by Butterfield, Danny B
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 N6SGT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N6SGT.
- BUTTERFIELD, DANNY BWAgranted 2022-06-22
All historical holders
Every license row we've seen with the callsign N6SGT, oldest first.
- Butterfield, Danny B WA2009-02-10 → cancelled 2012-08-11
- SHAFFER, WILLIAM M CA2024-11-20 active