Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4BMQ callsign genealogy
Currently held by SPERRY JR, GEORGE H
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 KO4BMQ'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 KO4BMQ.
- Sperry Jr, George HSCgranted 2020-02-25