Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KQ4HVV callsign genealogy
Currently held by Hartmann, Oliver 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 KQ4HVV'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 KQ4HVV.
- Hartmann, Oliver JNCgranted 2023-05-06cancelled 2024-07-26