Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4RQH callsign genealogy
Currently held by Zen Wireless Club
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 KO4RQH'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 KO4RQH.
- NQ4JactiveZen Wireless ClubVAgranted 2021-08-10