Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0NZ callsign genealogy
Currently held by Quant, Frederick 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 AB0NZ's current licensee, walking backwards.
- QUANT, FREDERICK RMNgranted 1997-12-15cancelled 2000-07-01
Successor callsigns
Callsigns held now by people who previously held AB0NZ.
- Quant, Frederick RMNgranted 2020-07-28