Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4FRH callsign genealogy
Currently held by Roeber, Jonathan B
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 KK4FRH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4FRH.
- Roeber, Jonathan BGAgranted 2011-12-13cancelled 2020-11-21