Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0TWK callsign genealogy
Currently held by Knafla, Troy W
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 W0TWK's current licensee, walking backwards.
- Knafla, Troy WMNgranted 2013-05-15cancelled 2013-07-30
Successor callsigns
Callsigns held now by people who previously held W0TWK.
No current licensee on record previously held this callsign.