Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM6Y callsign genealogy
Currently held by RETTZO, BERNARD 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 KM6Y's current licensee, walking backwards.
- Young, Jeffrey ACAgranted 2010-01-27cancelled 2010-06-25
Successor callsigns
Callsigns held now by people who previously held KM6Y.
- RETTZO, BERNARD JAZgranted 2018-05-02
All historical holders
Every license row we've seen with the callsign KM6Y, oldest first.
- RETTZO, BERNARD J AZ2001-08-01 → cancelled 2008-06-06
- Young, Jeffrey OR2020-04-02 active