Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3IUS callsign genealogy
Currently held by SEAMON, RICHARD 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 W3IUS's current licensee, walking backwards.
- Thompson Jr, Sterling EPAgranted 2023-02-15cancelled 2023-04-29
Successor callsigns
Callsigns held now by people who previously held W3IUS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3IUS, oldest first.
- SEAMON, RICHARD M MD2009-02-24 → cancelled 2021-05-01
- Thompson Jr, Sterling E PA2023-04-29 active