Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB2RU callsign genealogy
Currently held by Nielsen, John 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 AB2RU's current licensee, walking backwards.
- Nielsen, John ENJgranted 2003-03-18cancelled 2004-03-08
Successor callsigns
Callsigns held now by people who previously held AB2RU.
- NIELSEN, JOHN ETNgranted 2013-11-06cancelled 2025-06-10