Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4JAY callsign genealogy
Currently held by LANGLEY III, JOHN 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 KD4JAY's current licensee, walking backwards.
- LANGLEY III, JOHN LVAgranted 2019-05-31cancelled 2019-07-02
Successor callsigns
Callsigns held now by people who previously held KD4JAY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4JAY, oldest first.
- PIERCE, GREGORY S FL1992-01-21 → cancelled 2004-01-22
- LANGLEY III, JOHN L FL2019-07-02 active