Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC3NCO callsign genealogy
Currently held by Speer, Justin 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 KC3NCO's current licensee, walking backwards.
- Speer, Justin MPAgranted 2018-12-11cancelled 2019-03-19
Successor callsigns
Callsigns held now by people who previously held KC3NCO.
No current licensee on record previously held this callsign.