Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4NU callsign genealogy
Currently held by Williams, Leland S
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 AI4NU's current licensee, walking backwards.
- Williams, Leland SVAgranted 2005-08-15cancelled 2006-01-20
Successor callsigns
Callsigns held now by people who previously held AI4NU.
- Williams, Leland SNCgranted 2017-12-09