Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1ZL callsign genealogy
Currently held by KONOS, NICHOLAS G
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 W1ZL's current licensee, walking backwards.
- YERSHOV, MATVEI AMAgranted 2024-01-27cancelled 2026-03-24
Successor callsigns
Callsigns held now by people who previously held W1ZL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1ZL, oldest first.
- KONOS, NICHOLAS G MA2013-12-04 → cancelled 2026-03-06
- YERSHOV, MATVEI A MA2026-03-24 active