Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4UMK callsign genealogy
Currently held by Rodriguez, Hector I
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 KI4UMK's current licensee, walking backwards.
- Rodriguez, Hector IFLgranted 2005-10-17cancelled 2007-03-20
Successor callsigns
Callsigns held now by people who previously held KI4UMK.
- Rodriguez, Hector IFLgranted 2020-11-20