Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OWL callsign genealogy
Currently held by SPRING III, RALPH E
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 K4OWL's current licensee, walking backwards.
- SPRING III, RALPH EVAgranted 1996-01-31cancelled 2000-09-26
Successor callsigns
Callsigns held now by people who previously held K4OWL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4OWL, oldest first.
- WALTERS, WALLACE W GA1987-09-15 → cancelled 1999-09-16
- SPRING III, RALPH E VA2020-09-02 active