Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1ATJ callsign genealogy
Currently held by Johnson, Aaron T
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 K1ATJ's current licensee, walking backwards.
- Johnson, Aaron TMEgranted 2010-12-14cancelled 2011-01-21
Successor callsigns
Callsigns held now by people who previously held K1ATJ.
No current licensee on record previously held this callsign.