Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JTO callsign genealogy
Currently held by OWENS JR, JOHN T
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 W4JTO's current licensee, walking backwards.
- OWENS JR, JOHN TSCgranted 2006-07-10cancelled 2008-03-18
Successor callsigns
Callsigns held now by people who previously held W4JTO.
No current licensee on record previously held this callsign.