Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS4NB callsign genealogy
Currently held by LAZAR, LAWRENCE
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 KS4NB's current licensee, walking backwards.
- KO4HVUcancelledWellington Emergency Radio ClubFLgranted 2020-09-25cancelled 2020-11-24
Successor callsigns
Callsigns held now by people who previously held KS4NB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KS4NB, oldest first.
- LAZAR, LAWRENCE FL2015-02-10 → cancelled 2020-08-09
- Wellington Contest Club FL2020-11-24 active