Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NU3P callsign genealogy
Currently held by Greenberg, David 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 NU3P's current licensee, walking backwards.
- Juarez, Bladimir EMDgranted 2016-04-27cancelled 2021-03-19
Successor callsigns
Callsigns held now by people who previously held NU3P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NU3P, oldest first.
- Greenberg, David L MD2008-09-26 → cancelled 2020-12-23
- Juarez, Bladimir E MD2021-03-19 active