Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3WK callsign genealogy
Currently held by KOCINSKI, WALTER
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 W3WK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W3WK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3WK, oldest first.
- KOCINSKI, WALTER PA1997-01-06 → cancelled 2008-11-05
- HAIMES, STANLEY C FL2018-10-10 active