Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4XU callsign genealogy
Currently held by HASSON, ROBERT P
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 AC4XU's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AC4XU.
- HASSON, ROBERT PVAgranted 2008-03-18cancelled 2018-01-18