Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ABZ callsign genealogy
Currently held by HOUSEMAN, ARTHUR L
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 K9ABZ's current licensee, walking backwards.
- Lindeman, Don LILgranted 2023-01-21cancelled 2026-02-03
Successor callsigns
Callsigns held now by people who previously held K9ABZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9ABZ, oldest first.
- HOUSEMAN, ARTHUR L IL2009-04-07 → cancelled 2021-05-06
- Lindeman, Don L IL2026-02-03 active