Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4JT callsign genealogy
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 AD4JT's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AD4JT.
- SMITH, GEORGE DFLgranted 2016-10-01