Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8AM callsign genealogy
Currently held by HIGGINS, RONALD 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 K8AM's current licensee, walking backwards.
- KNOTT, DAVID ROHgranted 2014-08-06cancelled 2019-12-20
Successor callsigns
Callsigns held now by people who previously held K8AM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8AM, oldest first.
- HIGGINS, RONALD S OH2009-01-06 → cancelled 2017-12-01
- KNOTT, DAVID R OH2019-12-20 active