Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1WSN callsign genealogy
Currently held by Zwirko, Phyllis G
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 K1WSN's current licensee, walking backwards.
- ZWIRKO, PHYLLIS GMDgranted 2003-04-08cancelled 2003-05-09
Successor callsigns
Callsigns held now by people who previously held K1WSN.
No current licensee on record previously held this callsign.