Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7HOE callsign genealogy
Currently held by MATTSON, CLARKE F
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 K7HOE's current licensee, walking backwards.
- Mattson, Jeffrey SNHgranted 2021-09-28cancelled 2022-03-22
Successor callsigns
Callsigns held now by people who previously held K7HOE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7HOE, oldest first.
- MATTSON, CLARKE F WA2003-11-12 → cancelled 2016-02-09
- Mattson, Jeffrey S NH2022-03-22 active