Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AL4M callsign genealogy
Currently held by Williams, Keith A
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 AL4M's current licensee, walking backwards.
- Williams, Keith AAKgranted 2010-11-08cancelled 2012-11-14
Successor callsigns
Callsigns held now by people who previously held AL4M.
No current licensee on record previously held this callsign.