Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0TTK callsign genealogy
Currently held by Kopinski, Thomas T
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 W0TTK's current licensee, walking backwards.
- Kopinski, Thomas TMOgranted 2014-11-26cancelled 2014-12-19
Successor callsigns
Callsigns held now by people who previously held W0TTK.
No current licensee on record previously held this callsign.