Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9TTI callsign genealogy
Currently held by HOLLINSHEAD, RAY J
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 KB9TTI's current licensee, walking backwards.
- Hauser, UlrichCOgranted 2005-01-19cancelled 2005-04-05
Successor callsigns
Callsigns held now by people who previously held KB9TTI.
- HOLLINSHEAD, RAY JILgranted 2010-04-02cancelled 2022-06-07
All historical holders
Every license row we've seen with the callsign KB9TTI, oldest first.
- HOLLINSHEAD, RAY J IL1999-03-11 → cancelled 2000-06-06
- HAUSER, ULRICH CO2025-12-02 active