Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4TBJ callsign genealogy
Currently held by FRANCIS, JAN L
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 N4TBJ's current licensee, walking backwards.
- Bilbrey Jr, Thomas JTNgranted 2019-05-20cancelled 2025-06-24
Successor callsigns
Callsigns held now by people who previously held N4TBJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TBJ, oldest first.
- FRANCIS, JAN L KY1996-09-09 → cancelled 2008-09-10
- Bilbrey Jr, Thomas J TN2025-06-24 active