Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM6DYH callsign genealogy
Currently held by Huang, David Y
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 KM6DYH's current licensee, walking backwards.
- Huang, David YCAgranted 2018-11-05cancelled 2018-12-27
Successor callsigns
Callsigns held now by people who previously held KM6DYH.
- WA6RDXactiveAmerican Red Cross Amateur Radio Club Of El CentroCAgranted 2016-09-20
All historical holders
Every license row we've seen with the callsign KM6DYH, oldest first.
- American Red Cross Amateur Radio Club Of El Centro CA2016-07-15 → cancelled 2016-09-20
- Huang, David Y CA2018-12-27 active