Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4ROB callsign genealogy
Currently held by Ostergard, Kristofer M
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 KG4ROB's current licensee, walking backwards.
- Moore, Robert LNCgranted 2018-05-25cancelled 2019-12-03
Successor callsigns
Callsigns held now by people who previously held KG4ROB.
- Ostergard, Kristofer MVAgranted 2012-02-14cancelled 2024-04-04
All historical holders
Every license row we've seen with the callsign KG4ROB, oldest first.
- Ostergard, Kristofer M VA2002-02-13 → cancelled 2002-04-03
- Moore, Robert L NC2019-12-03 active