Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4KNI callsign genealogy
Currently held by Donelan, James 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 WD4KNI's current licensee, walking backwards.
- Donelan, James ASCgranted 2012-11-16cancelled 2012-12-18
Successor callsigns
Callsigns held now by people who previously held WD4KNI.
- Donelan, James ASCgranted 2015-05-05
All historical holders
Every license row we've seen with the callsign WD4KNI, oldest first.
- DONELAN, JAMES A SC1988-09-27 → cancelled 2000-09-28
- Donelan, James A SC2012-12-18 → cancelled 2015-05-05