Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB9DEA callsign genealogy
Currently held by Ott, Jason M
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 KB9DEA's current licensee, walking backwards.
- Ott, Jason MINgranted 2002-03-26cancelled 2002-11-19
Successor callsigns
Callsigns held now by people who previously held KB9DEA.
- Ott, Jason MINgranted 2022-05-03
All historical holders
Every license row we've seen with the callsign KB9DEA, oldest first.
- MAZZA, DOMINICK S IL1989-07-18 → cancelled 2001-07-19
- Ott, Jason M IN2012-10-19 → cancelled 2022-05-03