Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RIS callsign genealogy
Currently held by Van Dam, Willem J
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 W4RIS's current licensee, walking backwards.
- Van Dam, Willem JFLgranted 2001-10-29cancelled 2004-01-17
Successor callsigns
Callsigns held now by people who previously held W4RIS.
No current licensee on record previously held this callsign.