Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3OU callsign genealogy
Currently held by GUO, LIQIANG
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 AC3OU's current licensee, walking backwards.
- GUO, LIQIANGDEgranted 2025-03-28cancelled 2025-05-12
Successor callsigns
Callsigns held now by people who previously held AC3OU.
No current licensee on record previously held this callsign.