Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC3KZ callsign genealogy
Currently held by KASS, SHOLOM
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 KC3KZ's current licensee, walking backwards.
- Zembower, Edward KMDgranted 2017-11-20cancelled 2018-05-12
Successor callsigns
Callsigns held now by people who previously held KC3KZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC3KZ, oldest first.
- KASS, SHOLOM DE1989-08-29 → cancelled 2001-08-30
- Zembower, Edward K MD2018-05-12 active