Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0TZC callsign genealogy
Currently held by Valenta, Richard J
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 N0TZC's current licensee, walking backwards.
- Valenta, Richard JMOgranted 2022-09-20cancelled 2022-10-08
Successor callsigns
Callsigns held now by people who previously held N0TZC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0TZC, oldest first.
- VALENTA, RICHARD J MO2002-07-13 → cancelled 2014-08-19
- Valenta, Richard J MO2022-10-08 active