Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4DSH callsign genealogy
Currently held by WAKAMATSU, JAY D
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 KF4DSH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF4DSH.
- Wakamatsu, Jay DVAgranted 2005-07-07cancelled 2008-05-03