Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4ISH callsign genealogy
Currently held by MATEO, LETICIA
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 KT4ISH's current licensee, walking backwards.
- MATEO, LETICIAFLgranted 2010-06-04cancelled 2010-08-10
Successor callsigns
Callsigns held now by people who previously held KT4ISH.
No current licensee on record previously held this callsign.