Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4CZ callsign genealogy
Currently held by Zettelmeyer, Carl 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 WA4CZ's current licensee, walking backwards.
- Zettelmeyer, Carl JFLgranted 2004-01-09cancelled 2007-08-10
Successor callsigns
Callsigns held now by people who previously held WA4CZ.
No current licensee on record previously held this callsign.