Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7TWY callsign genealogy
Currently held by Tyson, David L
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 K7TWY's current licensee, walking backwards.
- Tyson, David LWYgranted 2021-04-26cancelled 2021-06-29
Successor callsigns
Callsigns held now by people who previously held K7TWY.
No current licensee on record previously held this callsign.