Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TJN callsign genealogy
Currently held by NIELING, THOMAS J
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 K9TJN's current licensee, walking backwards.
- NIELING, THOMAS JWIgranted 2019-02-01
Successor callsigns
Callsigns held now by people who previously held K9TJN.
- NIELING, THOMAS JWIgranted 2019-02-01