Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9KHZ callsign genealogy
Currently held by Richardson, 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 W9KHZ's current licensee, walking backwards.
- Richardson, David CKYgranted 2014-08-06cancelled 2015-08-04
Successor callsigns
Callsigns held now by people who previously held W9KHZ.
No current licensee on record previously held this callsign.