Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0JRO callsign genealogy
Currently held by O'Neill, John R
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 KB0JRO's current licensee, walking backwards.
- O Neill, John RMOgranted 2006-11-16cancelled 2006-12-08
Successor callsigns
Callsigns held now by people who previously held KB0JRO.
- O'Neill, John RMOgranted 2024-11-08