Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0BZB callsign genealogy
Currently held by Arnold, Derek 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 K0BZB's current licensee, walking backwards.
- Arnold, Derek RMNgranted 2019-07-09cancelled 2019-07-27
Successor callsigns
Callsigns held now by people who previously held K0BZB.
No current licensee on record previously held this callsign.