Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9USV callsign genealogy
Currently held by MULLEN, ROBERT L
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 K9USV's current licensee, walking backwards.
- MULLEN, ROBERT LOHgranted 1998-05-01cancelled 2008-02-12
Successor callsigns
Callsigns held now by people who previously held K9USV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9USV, oldest first.
- MULLEN, ROBERT L IL1990-07-03 → cancelled 2002-07-04
- MULLEN, ROBERT L SC2018-01-20 active