Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8ATJ callsign genealogy
Currently held by ECKHARDT, DONALD L
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 W8ATJ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W8ATJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8ATJ, oldest first.
- ECKHARDT, DONALD L OH2006-08-02 → cancelled 2007-05-04
- Swain Mr., David E OH2017-03-23 active