Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7KH callsign genealogy
Currently held by Hara, Hiroto
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 W7KH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W7KH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7KH, oldest first.
- DACK, JOHN L WA2006-04-05 → cancelled 2013-07-05
- Hara, Hiroto OR2015-07-24 active