Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4IOB callsign genealogy
Currently held by Oberley, Daniel J
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 KJ4IOB's current licensee, walking backwards.
- Oberley, Daniel JFLgranted 2008-01-08cancelled 2008-12-17
Successor callsigns
Callsigns held now by people who previously held KJ4IOB.
- Oberley, Daniel JFLgranted 2018-11-13