Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4ED callsign genealogy
Currently held by HARTZOG, EDGAR A
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 AB4ED's current licensee, walking backwards.
- HARTZOG, EDGAR ASCgranted 1993-09-14cancelled 2001-05-08
Successor callsigns
Callsigns held now by people who previously held AB4ED.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4ED, oldest first.
- COWDEN, EARL T FL1987-10-27 → cancelled 1999-10-28
- HARTZOG, EDGAR A SC2011-02-08 → cancelled 2023-05-09