Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OES callsign genealogy
Currently held by Ling, Ryan W
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 W4OES's current licensee, walking backwards.
- Ling, Ryan WCAgranted 2003-03-31cancelled 2003-04-29
Successor callsigns
Callsigns held now by people who previously held W4OES.
- Ling, Ryan WCAgranted 2022-03-15