Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4TET callsign genealogy
Currently held by HOROWITZ, SETH 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 KO4TET's current licensee, walking backwards.
- HOROWITZ, SETH PFLgranted 2013-07-11cancelled 2021-09-13
Successor callsigns
Callsigns held now by people who previously held KO4TET.
No current licensee on record previously held this callsign.