Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL7T callsign genealogy
Currently held by Graham, Michael J
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 KL7T's current licensee, walking backwards.
- Graham, Michael JAKgranted 2008-07-09cancelled 2017-07-21
Successor callsigns
Callsigns held now by people who previously held KL7T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL7T, oldest first.
- WORRALL JR, JOSEPH A WA2013-10-21 → cancelled 2015-07-01
- Graham, Michael J AK2017-07-21 active