Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KQ1O callsign genealogy
Currently held by KANG, HAICHUAN
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 KQ1O's current licensee, walking backwards.
- Montalvo Rodriguez, Santiago LVAgranted 2022-03-21cancelled 2022-12-20
Successor callsigns
Callsigns held now by people who previously held KQ1O.
- KANG, HAICHUANCAgranted 2020-05-05cancelled 2022-04-16
All historical holders
Every license row we've seen with the callsign KQ1O, oldest first.
- Perry Jr, Arthur J CT2007-09-11 → cancelled 2019-11-26
- KANG, HAICHUAN MA2019-12-14 → cancelled 2020-05-05
- Montalvo Rodriguez, Santiago L VA2022-12-20 active