Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA9YLU callsign genealogy
Currently held by Massopust, Thomas D
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 WA9YLU's current licensee, walking backwards.
- Massopust, Thomas DWIgranted 2019-05-28cancelled 2020-01-25
Successor callsigns
Callsigns held now by people who previously held WA9YLU.
No current licensee on record previously held this callsign.