Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SML callsign genealogy
Currently held by LEVINSON, SHERWIN 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 K4SML's current licensee, walking backwards.
- LEVINSON, SHERWIN MGAgranted 2013-07-30cancelled 2013-08-20
Successor callsigns
Callsigns held now by people who previously held K4SML.
No current licensee on record previously held this callsign.