Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ1EHN callsign genealogy
Currently held by Park, Jihoon H
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 KZ1EHN's current licensee, walking backwards.
- Park, JihoonORgranted 2022-10-21cancelled 2022-11-08
Successor callsigns
Callsigns held now by people who previously held KZ1EHN.
- Park, Jihoon HORgranted 2023-09-06