Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0JRR callsign genealogy
Currently held by LESLIE, RONALD F
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 KB0JRR's current licensee, walking backwards.
- RAMIREZ, JOSE RPRgranted 2015-08-20cancelled 2018-09-11
Successor callsigns
Callsigns held now by people who previously held KB0JRR.
- RAMIREZ, JOSE RPRgranted 2020-03-13
All historical holders
Every license row we've seen with the callsign KB0JRR, oldest first.
- LESLIE, RONALD F MO1991-11-19 → cancelled 2003-11-20
- RAMIREZ, JOSE R PR2018-09-11 → cancelled 2020-03-13