Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9TOW callsign genealogy
Currently held by Main, Sammy A
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 KD9TOW's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD9TOW.
- Main, Sammy AINgranted 2021-10-13cancelled 2023-05-09