Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI3Y callsign genealogy
Currently held by SIMPSON, DAVID L
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 WI3Y's current licensee, walking backwards.
- Butler IV, John RMDgranted 2020-08-24cancelled 2023-11-03
Successor callsigns
Callsigns held now by people who previously held WI3Y.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WI3Y, oldest first.
- SIMPSON, DAVID L PA2011-08-16 → cancelled 2023-10-06
- Butler IV, John R MD2023-11-03 active