Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9KTT callsign genealogy
Currently held by Seyffer, Catherine M
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 K9KTT's current licensee, walking backwards.
- Seyffer, Catherine MWIgranted 2000-10-17cancelled 2007-09-05
Successor callsigns
Callsigns held now by people who previously held K9KTT.
No current licensee on record previously held this callsign.