Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW4W callsign genealogy
Currently held by FEICK, JAMES H
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 KW4W's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KW4W.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KW4W, oldest first.
- FEICK, JAMES H MA2000-05-05 → cancelled 2010-01-12
- GRAMMER, BILL SC2021-11-05 active