Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA6ST callsign genealogy
Currently held by Tiwari, Sameer
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 AA6ST's current licensee, walking backwards.
- TIWARI, SAMEERCAgranted 2016-10-15cancelled 2023-01-28
Successor callsigns
Callsigns held now by people who previously held AA6ST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA6ST, oldest first.
- FENNER, CHARLES A CA1989-12-12 → cancelled 2002-03-07
- Tiwari, Sameer NC2023-01-28 active