Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4KEM callsign genealogy
Currently held by Williams, Pamela M
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 W4KEM's current licensee, walking backwards.
- Williams, Pamela MNCgranted 2004-10-13cancelled 2011-09-13
Successor callsigns
Callsigns held now by people who previously held W4KEM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4KEM, oldest first.
- Mallard Jr, Leo C NC2006-01-31 → cancelled 2010-02-09
- Williams, Pamela M NC2021-07-08 active