Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1LLK callsign genealogy
Currently held by Katz, Will A
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 W1LLK's current licensee, walking backwards.
- Katz, Will AVAgranted 2021-01-07cancelled 2021-02-06
Successor callsigns
Callsigns held now by people who previously held W1LLK.
No current licensee on record previously held this callsign.