Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4OPZ callsign genealogy
Currently held by HARRIS, MICHAEL 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 KB4OPZ's current licensee, walking backwards.
- Harris, Michael FVAgranted 2014-06-25cancelled 2014-08-08
Successor callsigns
Callsigns held now by people who previously held KB4OPZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4OPZ, oldest first.
- HARRIS, MICHAEL F VA1995-11-22 → cancelled 2007-11-24
- Harris, Michael F VA2024-07-23 active