Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8TMR callsign genealogy
Currently held by Rydahl, Thomas M
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 W8TMR's current licensee, walking backwards.
- Rydahl, Thomas MMIgranted 2009-06-22cancelled 2016-02-20
Successor callsigns
Callsigns held now by people who previously held W8TMR.
No current licensee on record previously held this callsign.