Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC3JCS callsign genealogy
Currently held by Sauer, John C
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 KC3JCS's current licensee, walking backwards.
- Sauer, John CMDgranted 2016-03-21cancelled 2016-06-18
Successor callsigns
Callsigns held now by people who previously held KC3JCS.
- Sauer, John CFLgranted 2021-05-04