Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4ZB callsign genealogy
Currently held by ARNOLD JR, JAMES 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 AJ4ZB's current licensee, walking backwards.
- ARNOLD JR, JAMES ETNgranted 2009-11-30cancelled 2010-05-12
Successor callsigns
Callsigns held now by people who previously held AJ4ZB.
No current licensee on record previously held this callsign.