Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OWB callsign genealogy
Currently held by SMITH SR, WILLIAM W
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 K4OWB's current licensee, walking backwards.
- Hibbs, William CKYgranted 2012-01-27cancelled 2012-03-06
Successor callsigns
Callsigns held now by people who previously held K4OWB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4OWB, oldest first.
- SMITH SR, WILLIAM W SC1988-01-19 → cancelled 2000-01-20
- Hibbs, William C KY2021-12-15 active