Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3KTM callsign genealogy
Currently held by SEDORE, MICHAEL
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 W3KTM's current licensee, walking backwards.
- Reindel, Hans DORgranted 2019-05-30cancelled 2019-06-21
Successor callsigns
Callsigns held now by people who previously held W3KTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3KTM, oldest first.
- SEDORE, MICHAEL AZ1998-04-03 → cancelled 2010-04-06
- Reindel, Hans D OR2019-06-21 active