Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8MOS callsign genealogy
Currently held by Yin, Yihang
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 W8MOS's current licensee, walking backwards.
- Yin, YihangMIgranted 2024-01-05cancelled 2025-04-25
Successor callsigns
Callsigns held now by people who previously held W8MOS.
No current licensee on record previously held this callsign.