Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0UZ callsign genealogy
Currently held by Rittberg, Barry 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 AB0UZ's current licensee, walking backwards.
- Rittberg, Barry RMNgranted 2001-10-15cancelled 2002-04-24
Successor callsigns
Callsigns held now by people who previously held AB0UZ.
No current licensee on record previously held this callsign.