Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9RZR callsign genealogy
Currently held by BAUM, ROBERT F
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 W9RZR's current licensee, walking backwards.
- BAUM, ROBERT FINgranted 1998-02-20cancelled 2001-08-10
Successor callsigns
Callsigns held now by people who previously held W9RZR.
No current licensee on record previously held this callsign.