Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4MYY callsign genealogy
Currently held by HOLDER JR, VERNON J
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 KJ4MYY's current licensee, walking backwards.
- Holder Jr, Vernon JSCgranted 2009-02-12cancelled 2009-06-18
Successor callsigns
Callsigns held now by people who previously held KJ4MYY.
- HOLDER JR, VERNON JSCgranted 2018-11-15