Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DCK callsign genealogy
Currently held by Kalinowski, David C
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 W9DCK's current licensee, walking backwards.
- Kalinowski, David CVAgranted 2014-12-15cancelled 2015-06-06
Successor callsigns
Callsigns held now by people who previously held W9DCK.
No current licensee on record previously held this callsign.