Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1SID callsign genealogy
Currently held by Curtis, Sidney D
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 N1SID's current licensee, walking backwards.
- Curtis, Sidney DNCgranted 2014-02-25cancelled 2014-04-01
Successor callsigns
Callsigns held now by people who previously held N1SID.