Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9OK callsign genealogy
Currently held by ROBIN JR, JOSEPH F
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 N9OK's current licensee, walking backwards.
- ROBIN JR, JOSEPH FILgranted 2008-08-15cancelled 2008-10-04
Successor callsigns
Callsigns held now by people who previously held N9OK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9OK, oldest first.
- BROENDEL, ALBERT T IL1996-07-11 → cancelled 2007-01-05
- ROBIN JR, JOSEPH F IL2018-07-20 active