Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0SDC callsign genealogy
Currently held by SANGRE DE CRISTO AMATEUR RADIO CLUB
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 N0SDC's current licensee, walking backwards.
- KF0MOOcancelledSANGRE DE CRISTO AMATEUR RADIO CLUBCOgranted 2023-05-09cancelled 2023-05-27
Successor callsigns
Callsigns held now by people who previously held N0SDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0SDC, oldest first.
- SIMONSON SR, DONALD L MN2002-01-24 → cancelled 2014-04-22
- SANGRE DE CRISTO AMATEUR RADIO CLUB CO2023-05-27 active