Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6TWD callsign genealogy
Currently held by Griffith, John 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 K6TWD's current licensee, walking backwards.
- Griffith, John RCAgranted 2015-04-23cancelled 2015-05-12
Successor callsigns
Callsigns held now by people who previously held K6TWD.
No current licensee on record previously held this callsign.