Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1HK callsign genealogy
Currently held by CATHERMAN, DAVIS 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 K1HK's current licensee, walking backwards.
- CATHERMAN, DAVIS SMAgranted 2020-07-10cancelled 2024-01-30
Successor callsigns
Callsigns held now by people who previously held K1HK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1HK, oldest first.
- KOST, HAROLD S MA2016-03-08 → cancelled 2022-01-10
- CATHERMAN, DAVIS S MA2024-01-30 active