Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8ON callsign genealogy
Currently held by Jeffords, Robert D
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 K8ON's current licensee, walking backwards.
- Jeffords, Robert DOHgranted 2000-06-07cancelled 2001-04-13
Successor callsigns
Callsigns held now by people who previously held K8ON.
- ABAD, JOSEPH MFLgranted 2019-07-16
All historical holders
Every license row we've seen with the callsign K8ON, oldest first.
- Jeffords, Robert D OH2021-01-19 active
- ABAD, JOSEPH M— → cancelled 1999-03-17