Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9KDC callsign genealogy
Currently held by SCHROEDER, LAWRENCE J
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 KA9KDC's current licensee, walking backwards.
- Schroeder, Kelsey MILgranted 2013-06-25cancelled 2016-04-29
Successor callsigns
Callsigns held now by people who previously held KA9KDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA9KDC, oldest first.
- SCHROEDER, LAWRENCE J IL2005-12-16 → cancelled 2014-05-06
- Schroeder, Kelsey M IL2016-04-29 active