Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1ZFY callsign genealogy
Currently held by Eisenberg, Steve
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 K1ZFY's current licensee, walking backwards.
- Eisenberg, Steven RMEgranted 2019-04-09
Successor callsigns
Callsigns held now by people who previously held K1ZFY.
- Eisenberg, Steven RMEgranted 2019-04-09