Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6SMP callsign genealogy
Currently held by PRESTON, SCOTT M
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 N6SMP's current licensee, walking backwards.
- Preston, Scott MCAgranted 2008-05-15cancelled 2008-07-04
Successor callsigns
Callsigns held now by people who previously held N6SMP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6SMP, oldest first.
- LONNBERG, CARL W CA1988-06-21 → cancelled 2000-06-22
- PRESTON, SCOTT M CA2018-11-29 active