Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4UEW callsign genealogy
Currently held by HARBOUR, 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 KM4UEW's current licensee, walking backwards.
- HARBOUR, WILLIAM JFLgranted 2016-04-27cancelled 2016-05-24
Successor callsigns
Callsigns held now by people who previously held KM4UEW.
- HARBOUR, WILLIAM JFLgranted 2016-07-01