Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RBZ callsign genealogy
Currently held by Karbo, Christopher O
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 K7RBZ's current licensee, walking backwards.
- Karbo, Christopher OCAgranted 2019-12-12cancelled 2020-01-28
Successor callsigns
Callsigns held now by people who previously held K7RBZ.
No current licensee on record previously held this callsign.