Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5TTU callsign genealogy
Currently held by Amateur Radio Society At Tech
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 K5TTU's current licensee, walking backwards.
- KE5BFHcancelledAmateur Radio Society A &TechTXgranted 2004-04-29cancelled 2006-01-07
Successor callsigns
Callsigns held now by people who previously held K5TTU.
- Kasinger, Charles DTXgranted 2023-08-25
All historical holders
Every license row we've seen with the callsign K5TTU, oldest first.
- Kasinger, Charles D TX2003-05-20 → cancelled 2003-09-05
- Amateur Radio Society At Tech TX2025-12-24 active