Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4JF callsign genealogy
Currently held by AHRENS, ARTHUR E
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 KU4JF's current licensee, walking backwards.
- KD4BKScancelledcancelled 1997-08-06
Successor callsigns
Callsigns held now by people who previously held KU4JF.
No current licensee on record previously held this callsign.