Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0SXX callsign genealogy
Currently held by Marcus, Patrick
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 N0SXX's current licensee, walking backwards.
- Marcus, PatrickAZgranted 2022-03-14cancelled 2022-04-01
Successor callsigns
Callsigns held now by people who previously held N0SXX.
- SLAGEL, GARY DSDgranted 2021-10-28
All historical holders
Every license row we've seen with the callsign N0SXX, oldest first.
- SLAGEL, GARY D SD2002-03-12 → cancelled 2012-01-24
- Marcus, Patrick AZ2022-04-01 active