Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3OAK callsign genealogy
Currently held by KELLER, JOSEPHINE S
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 K3OAK's current licensee, walking backwards.
- ROBERTS, TERESA LNCgranted 2018-04-16cancelled 2018-05-04
Successor callsigns
Callsigns held now by people who previously held K3OAK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3OAK, oldest first.
- KELLER, JOSEPHINE S FL1992-08-11 → cancelled 2004-08-12
- ROBERTS, TERESA L NC2018-05-04 active