Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AJ4HA callsign genealogy
Currently held by Donohue, 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 AJ4HA's current licensee, walking backwards.
- Donohue, James EVAgranted 2007-10-26cancelled 2008-04-14
Successor callsigns
Callsigns held now by people who previously held AJ4HA.
No current licensee on record previously held this callsign.