Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9FHV callsign genealogy
Currently held by GRAFF, ROBERT P
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 K9FHV's current licensee, walking backwards.
- Graff, PhilipILgranted 2026-04-22cancelled 2026-08-01
Successor callsigns
Callsigns held now by people who previously held K9FHV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9FHV, oldest first.
- GRAFF, ROBERT P IL2017-06-20 → cancelled 2026-02-20
- Graff, Philip IL2026-08-01 active