Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI7MAC callsign genealogy
Currently held by BATES, JOHN 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 KI7MAC's current licensee, walking backwards.
- Campbell, Mark AUTgranted 2017-06-05cancelled 2017-06-27
Successor callsigns
Callsigns held now by people who previously held KI7MAC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI7MAC, oldest first.
- BATES, JOHN M AZ2013-10-17 → cancelled 2014-07-10
- Campbell, Mark A UT2017-06-27 active