Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6TDS callsign genealogy
Currently held by Speltz, Timothy D
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 K6TDS's current licensee, walking backwards.
- Speltz, Timothy DCAgranted 2018-11-15cancelled 2019-12-20
Successor callsigns
Callsigns held now by people who previously held K6TDS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6TDS, oldest first.
- HIGGINSON, JACK B CA2007-08-21 → cancelled 2019-11-19
- Speltz, Timothy D CA2019-12-20 active