Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0ZAZ callsign genealogy
Currently held by Mellin, Mark
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 K0ZAZ's current licensee, walking backwards.
- Mellin, MarkCOgranted 2024-04-11cancelled 2024-05-03
Successor callsigns
Callsigns held now by people who previously held K0ZAZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0ZAZ, oldest first.
- Pittenger, James E CO2005-01-03 → cancelled 2017-04-01
- Mellin, Mark CO2024-05-03 active