Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9AXT callsign genealogy
Currently held by HARPER JR, JOHN D
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 KB9AXT's current licensee, walking backwards.
- Harper Jr, John DILgranted 2020-09-01cancelled 2020-09-22
Successor callsigns
Callsigns held now by people who previously held KB9AXT.
- HARPER JR, JOHN DILgranted 2001-11-14cancelled 2002-03-07
All historical holders
Every license row we've seen with the callsign KB9AXT, oldest first.
- HARPER JR, JOHN D IL1990-10-16 → cancelled 2000-07-06
- HARPER JR, JOHN D IL2002-03-07 → cancelled 2014-03-08
- Harper Jr, John D IL2020-09-22 active