Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4HRB callsign genealogy
Currently held by FROG HOLLOW ARC
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 KJ4HRB'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 KJ4HRB.
- K4ZPAactiveFROG HOLLOW ARCVAgranted 2018-09-21