Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0WAT callsign genealogy
Currently held by TARMOEDJI, SLAMET N
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 K0WAT's current licensee, walking backwards.
- Thompson, Ammon RMOgranted 2017-06-07cancelled 2017-07-01
Successor callsigns
Callsigns held now by people who previously held K0WAT.
- TARMOEDJI, SLAMET NCAgranted 2012-09-22cancelled 2024-09-24
All historical holders
Every license row we've seen with the callsign K0WAT, oldest first.
- TARMOEDJI, SLAMET N CA2008-01-16 → cancelled 2012-09-22
- Thompson, Ammon MO2017-07-01 active