Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7CDI callsign genealogy
Currently held by Zantek, Jeff
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 W7CDI's current licensee, walking backwards.
- Zantek, Jeffrey EWAgranted 2021-08-20cancelled 2021-09-10
Successor callsigns
Callsigns held now by people who previously held W7CDI.
No current licensee on record previously held this callsign.