Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1NTR callsign genealogy
Currently held by DUYVESTEYN, MARK 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 W1NTR's current licensee, walking backwards.
- DUYVESTEYN, MARK DNVgranted 2007-01-24cancelled 2007-06-22
Successor callsigns
Callsigns held now by people who previously held W1NTR.
No current licensee on record previously held this callsign.