Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK7KRZ callsign genealogy
Currently held by Harrison Sr, Mark D
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 KK7KRZ's current licensee, walking backwards.
- Harrison Sr, Mark DORgranted 2024-03-09cancelled 2026-03-10
Successor callsigns
Callsigns held now by people who previously held KK7KRZ.
- Harrison Sr, Mark DORgranted 2024-03-09cancelled 2026-03-10
All historical holders
Every license row we've seen with the callsign KK7KRZ, oldest first.
- Harrison Sr, Mark D OR2023-02-24 → cancelled 2024-03-09
- Harrison Sr, Mark D OR2026-03-10 active