Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3SH callsign genealogy
Currently held by Hamasaki, Shunsaku
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 K3SH's current licensee, walking backwards.
- Hamasaki, ShunsakuORgranted 2018-07-20cancelled 2018-12-18
Successor callsigns
Callsigns held now by people who previously held K3SH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3SH, oldest first.
- SHANKS, D ALLEN PA2006-08-30 → cancelled 2018-11-27
- Hamasaki, Shunsaku OR2018-12-18 active