Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA3SDL callsign genealogy
Currently held by KLINE II, ROBERT 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 KA3SDL's current licensee, walking backwards.
- Kline II, Robert LMDgranted 2016-07-13cancelled 2016-08-02
Successor callsigns
Callsigns held now by people who previously held KA3SDL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA3SDL, oldest first.
- KLINE II, ROBERT L MD1998-07-08 → cancelled 2010-07-09
- Kline II, Robert L MD2026-05-12 active