Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7GMK callsign genealogy
Currently held by Kendoll, Gregory M
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 K7GMK's current licensee, walking backwards.
- Kendoll, Gregory MORgranted 2017-10-16cancelled 2017-11-18
Successor callsigns
Callsigns held now by people who previously held K7GMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7GMK, oldest first.
- SWANSON, JOHN A ID1998-10-14 → cancelled 2010-10-15
- Kendoll, Gregory M OR2017-11-18 active