Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6TR callsign genealogy
Currently held by MASER, ROBERT G
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 W6TR's current licensee, walking backwards.
- SCHARDT JR, WILLIAM BCAgranted 2022-07-06cancelled 2024-02-23
- KA6FISno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W6TR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6TR, oldest first.
- MASER, ROBERT G NY2016-08-19 → cancelled 2022-02-03
- SCHARDT JR, WILLIAM B CA2024-02-23 active