Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC3QQZ callsign genealogy
Currently held by Wlotko, Mark S
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 KC3QQZ's current licensee, walking backwards.
- Wlotko, Mark SPAgranted 2019-05-01cancelled 2020-05-27
Successor callsigns
Callsigns held now by people who previously held KC3QQZ.
- Wlotko, Mark SPAgranted 2021-05-21