Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9YB callsign genealogy
Currently held by Rosenberg, Michael R
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 N9YB's current licensee, walking backwards.
- Rosenberg, Michael RINgranted 1996-01-24cancelled 2004-06-16
Successor callsigns
Callsigns held now by people who previously held N9YB.
No current licensee on record previously held this callsign.