Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4WJK callsign genealogy
Currently held by KELLER, WILLIAM 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 N4WJK's current licensee, walking backwards.
- KELLER, WILLIAM JNCgranted 2022-06-22cancelled 2023-07-14
Successor callsigns
Callsigns held now by people who previously held N4WJK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4WJK, oldest first.
- GREEN, ERNEST M VA2002-10-25 → cancelled 2015-01-06
- KELLER, WILLIAM J NC2023-07-14 active