Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4ARB callsign genealogy
Currently held by Andersen, Christopher
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 KK4ARB's current licensee, walking backwards.
- Brown, AprilFLgranted 2026-06-30cancelled 2026-07-21
Successor callsigns
Callsigns held now by people who previously held KK4ARB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4ARB, oldest first.
- Andersen, Christopher VA2011-03-04 → cancelled 2023-03-07
- Brown, April FL2026-07-21 active