Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4RHY callsign genealogy
Currently held by Riedel, Lawrence 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 KK4RHY'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 KK4RHY.
- Riedel, Lawrence JTNgranted 2013-06-07cancelled 2025-06-10