Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL7OT callsign genealogy
Currently held by QRM Curmudgeon Group
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 KL7OT's current licensee, walking backwards.
- WL7CXXcancelledQRM Curmudgeon GroupAKgranted 2016-09-14cancelled 2018-03-02
Successor callsigns
Callsigns held now by people who previously held KL7OT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL7OT, oldest first.
- Clay, Lydia A AK2007-09-04 → cancelled 2016-02-11
- QRM Curmudgeon Group AK2018-03-02 active