Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9JYJ callsign genealogy
Currently held by WILLIAMS, FREDRICK B
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 W9JYJ's current licensee, walking backwards.
- Janicky, Jessica YINgranted 2015-07-24cancelled 2015-08-28
Successor callsigns
Callsigns held now by people who previously held W9JYJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9JYJ, oldest first.
- WILLIAMS, FREDRICK B IL1998-04-22 → cancelled 2010-04-23
- JANICKY, JESSICA Y IN2025-07-23 active