Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JCR callsign genealogy
Currently held by Reinemann, Joseph C
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 K0JCR's current licensee, walking backwards.
- Reinemann, Joseph CMNgranted 2012-03-30cancelled 2014-08-05
Successor callsigns
Callsigns held now by people who previously held K0JCR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0JCR, oldest first.
- BIEBER, EARL C KS1987-09-29 → cancelled 1999-09-30
- Reinemann, Joseph C MN2024-11-13 active