Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4CZJ callsign genealogy
Currently held by CULBRETH, MICHAEL L
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 W4CZJ's current licensee, walking backwards.
- CULBRETH, MICHAEL LNCgranted 2010-06-30cancelled 2010-07-24
Successor callsigns
Callsigns held now by people who previously held W4CZJ.
No current licensee on record previously held this callsign.