Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6HDM callsign genealogy
Currently held by GOTTLIEB, IRVING 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 W6HDM's current licensee, walking backwards.
- Gottlieb, MarcCAgranted 2025-02-27cancelled 2025-03-18
Successor callsigns
Callsigns held now by people who previously held W6HDM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6HDM, oldest first.
- GOTTLIEB, IRVING M CA1994-03-15 → cancelled 2006-03-16
- Gottlieb, Marc CA2025-03-18 active