Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS1ZAC callsign genealogy
Currently held by Seto, Zachary J
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 KS1ZAC's current licensee, walking backwards.
- Seto, Zachary JCAgranted 2015-07-21cancelled 2016-01-15
Successor callsigns
Callsigns held now by people who previously held KS1ZAC.
No current licensee on record previously held this callsign.