Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TDH callsign genealogy
Currently held by Hallstrand 340, Jerry R
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 K9TDH's current licensee, walking backwards.
- Hallstrand, Jerry RWIgranted 2011-07-12cancelled 2011-08-02
Successor callsigns
Callsigns held now by people who previously held K9TDH.
No current licensee on record previously held this callsign.