Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA0AL callsign genealogy
Currently held by Kleinigger, Robert 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 KA0AL's current licensee, walking backwards.
- Kleinigger, Robert AMOgranted 2018-04-04cancelled 2018-09-18
Successor callsigns
Callsigns held now by people who previously held KA0AL.
- KEITH, ALDEN LMOgranted 2008-05-09cancelled 2020-05-12
All historical holders
Every license row we've seen with the callsign KA0AL, oldest first.
- KEITH, ALDEN L MO2007-06-26 → cancelled 2008-05-09
- Kleinigger, Robert A MO2018-09-18 active