Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9ATG callsign genealogy
Currently held by Armstrong, Joe W
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 K9ATG's current licensee, walking backwards.
- Armstrong, Joe WILgranted 2006-08-31cancelled 2009-12-22
Successor callsigns
Callsigns held now by people who previously held K9ATG.
No current licensee on record previously held this callsign.