Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AE9K callsign genealogy
Currently held by Greil, Dan S
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 AE9K's current licensee, walking backwards.
- SIEGEL, MATTHEW DILgranted 2017-02-04
- SIEGEL, MATTHEW DILgranted 2014-04-05cancelled 2017-02-04
- Swain, Judith LCAgranted 2020-07-24
- Swain, Judith LCAgranted 2015-05-27cancelled 2020-07-24
- Swain, Judith LCAgranted 2015-05-05cancelled 2015-05-27
Successor callsigns
Callsigns held now by people who previously held AE9K.
- CIESLAK, BRIANWIgranted 2021-06-07
All historical holders
Every license row we've seen with the callsign AE9K, oldest first.
- CIESLAK, BRIAN WI1992-05-12 → cancelled 2001-07-26
- Greil, Dan S SC2024-08-08 active