Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4PLN callsign genealogy
Currently held by KAPLAN, ROBERT S
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 KA4PLN's current licensee, walking backwards.
- KAPLAN, ROBERT SVAgranted 2014-05-12cancelled 2014-06-03
Successor callsigns
Callsigns held now by people who previously held KA4PLN.
No current licensee on record previously held this callsign.