Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7KN callsign genealogy
Currently held by Sasaki, Atsushi
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 W7KN's current licensee, walking backwards.
- Sasaki, AtsushiWAgranted 2001-04-12cancelled 2001-05-08
Successor callsigns
Callsigns held now by people who previously held W7KN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7KN, oldest first.
- TWINING, DONALD J TX1989-04-11 → cancelled 2001-04-12
- Sasaki, Atsushi WA2021-02-09 active