Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BWM callsign genealogy
Currently held by Williams, Robert E
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 K4BWM's current licensee, walking backwards.
- Williams, Robert ENCgranted 2019-02-01cancelled 2019-03-05
Successor callsigns
Callsigns held now by people who previously held K4BWM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4BWM, oldest first.
- HOWELL JR, WILLIAM B TN2006-02-14 → cancelled 2018-03-27
- Williams, Robert E NC2019-03-05 active