Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1PDK callsign genealogy
Currently held by Koch, Peter D
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 W1PDK's current licensee, walking backwards.
- Koch, Peter DCAgranted 2003-05-23cancelled 2003-12-02
Successor callsigns
Callsigns held now by people who previously held W1PDK.
No current licensee on record previously held this callsign.