Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW4JON callsign genealogy
Currently held by Sutton, John S
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 WW4JON's current licensee, walking backwards.
- Sutton, John SVAgranted 2016-04-25cancelled 2016-07-29
Successor callsigns
Callsigns held now by people who previously held WW4JON.
No current licensee on record previously held this callsign.