Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4CT callsign genealogy
Currently held by HOPPER, STEPHEN A
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 AD4CT'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 AD4CT.
- HOPPER, STEPHEN ATXgranted 2020-02-25