Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7AK callsign genealogy
Currently held by Grinder, Robert E
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 K7AK's current licensee, walking backwards.
- KENCK, ARTHUR EUTgranted 2011-11-01cancelled 2016-12-09
Successor callsigns
Callsigns held now by people who previously held K7AK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7AK, oldest first.
- Grinder, Robert E AZ2007-12-20 → cancelled 2014-11-19
- KENCK, ARTHUR E UT2016-12-09 active