Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7ZJ callsign genealogy
Currently held by Thompson, Keith 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 AC7ZJ's current licensee, walking backwards.
- Thompson, Keith MUTgranted 1999-03-23cancelled 2003-07-10
Successor callsigns
Callsigns held now by people who previously held AC7ZJ.
No current licensee on record previously held this callsign.