Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ7Y callsign genealogy
Currently held by BYNUM, HAROLD F
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 KZ7Y's current licensee, walking backwards.
- GARCIA, JULIOFLgranted 2022-11-16cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held KZ7Y.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ7Y, oldest first.
- BYNUM, HAROLD F TX2000-08-09 → cancelled 2012-10-17
- BUTTLER, MICHAEL J NV2012-11-06 → cancelled 2024-12-04
- GARCIA, JULIO FL2024-12-10 active