Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8SK callsign genealogy
Currently held by COLEMAN, JOHN 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 W8SK's current licensee, walking backwards.
- ONODERA, TOSHIYAMIgranted 2005-01-04cancelled 2006-01-10
Successor callsigns
Callsigns held now by people who previously held W8SK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8SK, oldest first.
- COLEMAN, JOHN E OH1997-07-09 → cancelled 2003-01-17
- ONODERA, TOSHIYA MI2026-01-08 active