Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4RJH callsign genealogy
Currently held by Haynes, Ross J
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 KB4RJH's current licensee, walking backwards.
- Haynes, Ross JVAgranted 2019-05-15cancelled 2019-06-04
Successor callsigns
Callsigns held now by people who previously held KB4RJH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4RJH, oldest first.
- GILBERT, FRED C FL2005-08-09 → cancelled 2017-11-08
- Haynes, Ross J VA2019-06-04 active