Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU4FS callsign genealogy
Currently held by ERICKSON, JAMES R
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 KU4FS's current licensee, walking backwards.
- N4OEBno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KU4FS.
- ERICKSON, JAMES RAZgranted 2017-05-16