Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0HSU callsign genealogy
Currently held by HEART - Hospital Emergency Amateur Radio Team
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 K0HSU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K0HSU.
No current licensee on record previously held this callsign.