Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RYH callsign genealogy
Currently held by WHITE, JOSEPH S
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 K4RYH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4RYH.
- WHITE, JOSEPH SGAgranted 2008-06-24cancelled 2016-06-10
All historical holders
Every license row we've seen with the callsign K4RYH, oldest first.
- CATO, GEORGE A GA1995-04-05 → cancelled 2000-04-20
- WHITE, JOSEPH S GA2005-04-19 → cancelled 2008-06-24