Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4KYS callsign genealogy
Currently held by Sparrow, Charles C
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 W4KYS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4KYS.
- Sparrow, Charles CKYgranted 2025-09-13cancelled 2026-01-16
All historical holders
Every license row we've seen with the callsign W4KYS, oldest first.
- STITT, TONY A TN2018-08-16 → cancelled 2019-11-29
- Sparrow, Charles C KY2025-03-11 → cancelled 2025-09-13