Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9JWZ callsign genealogy
Currently held by Zirbel, Justin W
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 W9JWZ's current licensee, walking backwards.
- Zirbel, Justin WWIgranted 2013-08-28cancelled 2018-08-10
Successor callsigns
Callsigns held now by people who previously held W9JWZ.
No current licensee on record previously held this callsign.