Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9K callsign genealogy
Currently held by Moritzky, Sager 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 AB9K's current licensee, walking backwards.
- Moritzky, Sager TCAgranted 2021-11-29cancelled 2023-02-04
Successor callsigns
Callsigns held now by people who previously held AB9K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB9K, oldest first.
- KRUEGER, WILLIAM R WI2010-10-19 → cancelled 2023-01-18
- Moritzky, Sager T CA2023-02-04 active