Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4OKI callsign genealogy
Currently held by MILLS II, JAMES 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 N4OKI's current licensee, walking backwards.
- Oki, Steven TFLgranted 2010-12-08cancelled 2010-12-28
Successor callsigns
Callsigns held now by people who previously held N4OKI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4OKI, oldest first.
- MILLS II, JAMES D NC1997-11-13 → cancelled 2009-11-14
- Oki, Steven T FL2020-09-30 active