Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4AED callsign genealogy
Currently held by Chapman, Mark
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 W4AED's current licensee, walking backwards.
- Chapman, MarkNJgranted 2010-04-07cancelled 2010-05-04
Successor callsigns
Callsigns held now by people who previously held W4AED.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4AED, oldest first.
- SHIVER, JAMES C AL1994-04-05 → cancelled 2006-04-06
- Chapman, Mark NJ2020-03-07 active