Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CCC callsign genealogy
Currently held by Fietz, Mario H
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 W0CCC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0CCC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CCC, oldest first.
- HAYNES, THERESA A NE1998-08-11 → cancelled 2010-08-12
- Fietz, Mario H CA2021-06-09 active