Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DOV callsign genealogy
Currently held by Alperstein, David N
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 N4DOV's current licensee, walking backwards.
- Alperstein, David NFLgranted 2011-04-18cancelled 2011-05-07
Successor callsigns
Callsigns held now by people who previously held N4DOV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4DOV, oldest first.
- HENDRICKS, THOMAS E SC1997-07-11 → cancelled 2009-07-14
- Alperstein, David N FL2021-02-22 active