Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4OJK callsign genealogy
Currently held by Kirby, Oliver 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 N4OJK's current licensee, walking backwards.
- Kirby, Oliver JTNgranted 2000-12-14cancelled 2001-01-05
Successor callsigns
Callsigns held now by people who previously held N4OJK.
No current licensee on record previously held this callsign.