Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0WK callsign genealogy
Currently held by PLONKA, JAMES 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 W0WK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0WK.
No current licensee on record previously held this callsign.