Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3OKS callsign genealogy
Currently held by O BRIEN, PATRICK 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 N3OKS's current licensee, walking backwards.
- OBrien, Patrick JMDgranted 2022-02-22cancelled 2022-03-15
Successor callsigns
Callsigns held now by people who previously held N3OKS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3OKS, oldest first.
- O BRIEN, PATRICK J MD1993-03-02 → cancelled 2005-03-03
- OBrien, Patrick J MD2022-03-15 active