Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0GG callsign genealogy
Currently held by Liu, Alex H
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 KD0GG's current licensee, walking backwards.
- Liu, Alex HCAgranted 2013-12-17cancelled 2014-03-14
Successor callsigns
Callsigns held now by people who previously held KD0GG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD0GG, oldest first.
- SERVATKA, EDWARD L MN1997-12-19 → cancelled 2009-12-22
- Liu, Alex H CA2024-01-09 active