Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3TWN callsign genealogy
Currently held by Superczynski, Denis 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 W3TWN's current licensee, walking backwards.
- Superczynski, Denis JMDgranted 2010-05-06cancelled 2016-04-19
Successor callsigns
Callsigns held now by people who previously held W3TWN.
No current licensee on record previously held this callsign.