Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4FOH callsign genealogy
Currently held by KOPP, AARON W
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 KA4FOH's current licensee, walking backwards.
- KOPP, AARON WUTgranted 2021-01-19cancelled 2021-02-06
Successor callsigns
Callsigns held now by people who previously held KA4FOH.
No current licensee on record previously held this callsign.