Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5IW callsign genealogy
Currently held by Sproul, Katherin 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 W5IW's current licensee, walking backwards.
- Sproul, Katherin AWVgranted 2014-12-24cancelled 2015-03-24
Successor callsigns
Callsigns held now by people who previously held W5IW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5IW, oldest first.
- DERAPELIAN, CHARLES FL2006-07-11 → cancelled 2013-03-04
- Sproul, Katherin A KY2025-11-26 active