Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA1ZEN callsign genealogy
Currently held by MACEDO, Ruben P
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 KA1ZEN's current licensee, walking backwards.
- Ducharme, TimVAgranted 2018-11-27cancelled 2018-12-18
Successor callsigns
Callsigns held now by people who previously held KA1ZEN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA1ZEN, oldest first.
- MACEDO, Ruben P MA2001-12-18 → cancelled 2013-07-24
- Ducharme, Tim VA2018-12-18 active