Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1JY callsign genealogy
Currently held by HAUCK, ROGER H
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 KC1JY's current licensee, walking backwards.
- GRAF, GLENN EMAgranted 2021-05-11cancelled 2026-04-11
Successor callsigns
Callsigns held now by people who previously held KC1JY.
- GRAF, GLENN EMAgranted 2026-05-02
All historical holders
Every license row we've seen with the callsign KC1JY, oldest first.
- HAUCK, ROGER H MA1998-12-10 → cancelled 2010-12-11
- GRAF, GLENN E MA2026-04-11 → cancelled 2026-05-02