Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4ZU callsign genealogy
Currently held by ALTO, LEE 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 AJ4ZU's current licensee, walking backwards.
- ALTO, LEE RVAgranted 2010-03-22cancelled 2010-06-11
Successor callsigns
Callsigns held now by people who previously held AJ4ZU.
No current licensee on record previously held this callsign.