Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9EMZ callsign genealogy
Currently held by Ulrich, Thomas 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 KD9EMZ's current licensee, walking backwards.
- Ulrich, Thomas MWIgranted 2013-01-29cancelled 2015-09-01
Successor callsigns
Callsigns held now by people who previously held KD9EMZ.
- Ulrich, Thomas MWIgranted 2013-01-29cancelled 2025-01-30