Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3RZ callsign genealogy
Currently held by RENZ, FRANK G
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 N3RZ's current licensee, walking backwards.
- RABINOWITZ, NEILMDgranted 1997-08-20cancelled 2000-05-12
Successor callsigns
Callsigns held now by people who previously held N3RZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3RZ, oldest first.
- RENZ, FRANK G PA1988-03-29 → cancelled 2000-03-30
- RABINOWITZ, NEIL FL2020-03-19 active