Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NY4DX callsign genealogy
Currently held by LEPKOWSKI, RICHARD T
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 NY4DX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NY4DX.
- LEPKOWSKI, RICHARD TTXgranted 2016-05-21cancelled 2021-06-22
All historical holders
Every license row we've seen with the callsign NY4DX, oldest first.
- LEPKOWSKI, RICHARD T TX2015-12-14 → cancelled 2016-05-21
- Yazon, Norman C CA2021-08-06 active