Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8IO callsign genealogy
Currently held by SCHMOCKER, SCOTT A
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 K8IO's current licensee, walking backwards.
- Jellison, Paul ROHgranted 2002-11-05cancelled 2009-11-07
Successor callsigns
Callsigns held now by people who previously held K8IO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8IO, oldest first.
- SCHMOCKER, SCOTT A OH1997-10-15 → cancelled 2009-10-16
- Jellison, Paul R OH2019-08-13 active