Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7HRR callsign genealogy
Currently held by Schaff, Michael C
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 K7HRR's current licensee, walking backwards.
- Schaff, Michael CVAgranted 2026-04-11cancelled 2026-05-02
Successor callsigns
Callsigns held now by people who previously held K7HRR.
No current licensee on record previously held this callsign.