Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SML callsign genealogy
Currently held by Laker, Sean 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 W4SML's current licensee, walking backwards.
- Laker, Sean MGAgranted 2016-05-23cancelled 2016-12-06
Successor callsigns
Callsigns held now by people who previously held W4SML.
No current licensee on record previously held this callsign.