Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI6NP callsign genealogy
Currently held by Yu, Heindrick
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 AI6NP's current licensee, walking backwards.
- Yu, HeindrickCAgranted 2016-01-05cancelled 2016-02-08
Successor callsigns
Callsigns held now by people who previously held AI6NP.
- Yu, HeindrickCAgranted 2026-02-10