Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4RR callsign genealogy
Currently held by WEINBAUM, RICHARD 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 KK4RR's current licensee, walking backwards.
- WEINBAUM, RICHARD SNCgranted 2007-01-04cancelled 2007-07-21
Successor callsigns
Callsigns held now by people who previously held KK4RR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4RR, oldest first.
- RAINES, JAMES H SC1987-09-29 → cancelled 1999-09-30
- WEINBAUM, RICHARD S NC2017-05-01 active