Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1LLI callsign genealogy
Currently held by Liao, Wei Shan
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 W1LLI's current licensee, walking backwards.
- Liao, Wei ShanWIgranted 2018-10-15cancelled 2018-11-02
Successor callsigns
Callsigns held now by people who previously held W1LLI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1LLI, oldest first.
- Williams, Robert F CA2006-01-07 → cancelled 2018-01-09
- Liao, Wei Shan WI2018-11-02 active