Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY7OT callsign genealogy
Currently held by KLINGLER, STEPHEN D
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 KY7OT's current licensee, walking backwards.
- KLINGLER, STEPHEN Dcancelled 1999-04-08
Successor callsigns
Callsigns held now by people who previously held KY7OT.
- KLINGLER, STEPHEN DAZgranted 2004-09-28cancelled 2009-09-26