Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9USF callsign genealogy
Currently held by PEREZ, JOSEPH 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 K9USF's current licensee, walking backwards.
- PEREZ, JOSEPH MFLgranted 2016-10-28cancelled 2016-11-18
Successor callsigns
Callsigns held now by people who previously held K9USF.
No current licensee on record previously held this callsign.