Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7SUB callsign genealogy
Currently held by Grater, Robert V
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 K7SUB's current licensee, walking backwards.
- Molvik, Patrick MWAgranted 2023-02-22cancelled 2024-05-10
Successor callsigns
Callsigns held now by people who previously held K7SUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7SUB, oldest first.
- Grater, Robert V WY2010-12-10 → cancelled 2023-02-28
- Molvik, Patrick M WA2024-05-10 active