Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6TDK callsign genealogy
Currently held by Andersen, Michael P
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 K6TDK's current licensee, walking backwards.
- Andersen, Michael PCAgranted 2017-10-19cancelled 2017-11-07
Successor callsigns
Callsigns held now by people who previously held K6TDK.
- K6ELXactiveSUNNYCREST RADIO CLUBNVgranted 2018-09-05
All historical holders
Every license row we've seen with the callsign K6TDK, oldest first.
- Andersen, Michael P CA2017-11-07 active
- BLOCH, ELLIOTT A— → cancelled 1998-11-24