Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9SPG callsign genealogy
Currently held by DUTCHER, PETER A
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 N9SPG's current licensee, walking backwards.
- DUNCAN, JOHN WILgranted 2010-10-18cancelled 2014-01-04
Successor callsigns
Callsigns held now by people who previously held N9SPG.
- DUTCHER, PETE AINgranted 2019-08-10
All historical holders
Every license row we've seen with the callsign N9SPG, oldest first.
- DUTCHER, PETER A IN2003-03-06 → cancelled 2009-10-06
- DUNCAN, JOHN W IL2023-12-16 active