Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4ZY callsign genealogy
Currently held by HUMPHRIES, ROGER J
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 AJ4ZY's current licensee, walking backwards.
- HUMPHRIES, ROGER JSCgranted 2010-05-10cancelled 2010-06-15
Successor callsigns
Callsigns held now by people who previously held AJ4ZY.
No current licensee on record previously held this callsign.