Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9SJP callsign genealogy
Currently held by Park, Sean
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 K9SJP's current licensee, walking backwards.
- Park, SeanILgranted 2022-10-12cancelled 2023-03-13
Successor callsigns
Callsigns held now by people who previously held K9SJP.
No current licensee on record previously held this callsign.