Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KR4ACK callsign genealogy
Currently held by Rackerby, Joel
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 KR4ACK's current licensee, walking backwards.
- Rackerby, JoelNCgranted 2023-09-08cancelled 2023-09-29
Successor callsigns
Callsigns held now by people who previously held KR4ACK.
No current licensee on record previously held this callsign.