Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NO3OO callsign genealogy
Currently held by Jefferson Amateur Radio Club
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 NO3OO's current licensee, walking backwards.
- KG5YKJcancelledJefferson Amateur Radio ClubLAgranted 2018-02-22cancelled 2018-03-27
Successor callsigns
Callsigns held now by people who previously held NO3OO.
No current licensee on record previously held this callsign.