Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL1DX callsign genealogy
Currently held by Karella, Jason A
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 KL1DX's current licensee, walking backwards.
- Fernandez Lanza, Oscar LuisAKgranted 2015-10-07cancelled 2015-10-27
Successor callsigns
Callsigns held now by people who previously held KL1DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL1DX, oldest first.
- Karella, Jason A AK2001-08-13 → cancelled 2013-08-14
- Fernandez Lanza, Oscar Luis AK2025-07-30 active