Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR7R callsign genealogy
Currently held by Wimmer, Micah
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 KR7R's current licensee, walking backwards.
- Wimmer, MicahAZgranted 2022-02-24cancelled 2024-10-16
Successor callsigns
Callsigns held now by people who previously held KR7R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR7R, oldest first.
- VINCENT, RICHARD D WA2016-12-19 → cancelled 2022-09-25
- Wimmer, Micah AZ2024-10-16 active