Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA7TZX callsign genealogy
Currently held by Back Sr, James T
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 KA7TZX's current licensee, walking backwards.
- Back Sr, James TWAgranted 2015-11-06cancelled 2015-11-28
Successor callsigns
Callsigns held now by people who previously held KA7TZX.
No current licensee on record previously held this callsign.