Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4GGQ callsign genealogy
Currently held by Hamilton County Emergency Services
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 KJ4GGQ'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 KJ4GGQ.
- KA4EMAactiveHamilton County Emergency ServicesTNgranted 2019-03-29