Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9KTY callsign genealogy
Currently held by BLACKBURN, WILLIAM H
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 K9KTY's current licensee, walking backwards.
- BLACKBURN, WILLIAM Hcancelled 1999-06-10
Successor callsigns
Callsigns held now by people who previously held K9KTY.
No current licensee on record previously held this callsign.