Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1ZON callsign genealogy
Currently held by Spiess, Richard 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 K1ZON's current licensee, walking backwards.
- Spiess, Richard ACTgranted 2012-06-25cancelled 2012-08-07
Successor callsigns
Callsigns held now by people who previously held K1ZON.
No current licensee on record previously held this callsign.