Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6THZ callsign genealogy
Currently held by ORENSTEIN, MELVIN 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 W6THZ's current licensee, walking backwards.
- Germanowski, Matthew JMAgranted 2014-10-08cancelled 2016-04-26
Successor callsigns
Callsigns held now by people who previously held W6THZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6THZ, oldest first.
- ORENSTEIN, MELVIN N NE1988-05-03 → cancelled 2000-05-04
- Germanowski, Matthew J NJ2026-08-18 active