Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS4AUL callsign genealogy
Currently held by KAPLAN, SAUL E
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 KS4AUL's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KS4AUL.
No current licensee on record previously held this callsign.