Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4BKK callsign genealogy
Currently held by Kung, Sunglian W
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 KB4BKK's current licensee, walking backwards.
- Kung, Sunglian WMAgranted 2022-03-29cancelled 2022-04-15
Successor callsigns
Callsigns held now by people who previously held KB4BKK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4BKK, oldest first.
- HARPS, BETTY J OH2007-06-13 → cancelled 2019-06-14
- Kung, Sunglian W VA2022-04-15 active