Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4TU callsign genealogy
Currently held by Cuperman, Ben
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 AJ4TU's current licensee, walking backwards.
- Cuperman, BenFLgranted 2009-09-17cancelled 2009-11-13
Successor callsigns
Callsigns held now by people who previously held AJ4TU.
- CUPERMAN, BENMAgranted 2019-11-01