Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0UP callsign genealogy
Currently held by Nelson, Randall E
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 AB0UP's current licensee, walking backwards.
- Nelson, Randall ENEgranted 1995-05-10cancelled 2002-04-01
Successor callsigns
Callsigns held now by people who previously held AB0UP.
No current licensee on record previously held this callsign.