Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9QDX callsign genealogy
Currently held by HENDERSON SR, HARRISON A
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 K9QDX's current licensee, walking backwards.
- HENDERSON SR, HARRISON AILgranted 2012-12-28cancelled 2016-01-12
Successor callsigns
Callsigns held now by people who previously held K9QDX.
- HENDERSON SR, HARRISON AILgranted 2017-10-24