Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9NPD callsign genealogy
Currently held by NAPERVILLE POLICE DEPARTMENT AMATEUR RADIO CLUB
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 W9NPD's current licensee, walking backwards.
- KB9YGKcancelledNAPERVILLE POLICE DEPARTMENT AMATEUR RADIO CLUBILgranted 2000-10-24cancelled 2000-11-14
Successor callsigns
Callsigns held now by people who previously held W9NPD.
No current licensee on record previously held this callsign.