Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5TJU callsign genealogy
Currently held by Bowman, Hiroshi C
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 N5TJU's current licensee, walking backwards.
- Bowman, Hiroshi CMDgranted 2025-04-15cancelled 2025-05-02
Successor callsigns
Callsigns held now by people who previously held N5TJU.
- BOWMAN, HIROSHI CINgranted 2003-04-08cancelled 2009-07-23
All historical holders
Every license row we've seen with the callsign N5TJU, oldest first.
- BOWMAN, HIROSHI C MA1998-10-15 → cancelled 2003-04-08
- Bowman, Hiroshi C MD2025-05-02 active