Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1SGC callsign genealogy
Currently held by Butler, Tom
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 N1SGC's current licensee, walking backwards.
- Butler, TomCAgranted 2003-01-24cancelled 2003-05-23
Successor callsigns
Callsigns held now by people who previously held N1SGC.
- Butler, TomCAgranted 2023-06-22