Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4RR callsign genealogy
Currently held by SMITH, JACK N
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 KU4RR's current licensee, walking backwards.
- SMITH, JACK Ncancelled 1998-05-06
Successor callsigns
Callsigns held now by people who previously held KU4RR.
No current licensee on record previously held this callsign.