Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9KTB callsign genealogy
Currently held by ABBOTT, JAMES R
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 K9KTB's current licensee, walking backwards.
- Brothers, Kathryn JILgranted 2005-08-12cancelled 2005-09-07
Successor callsigns
Callsigns held now by people who previously held K9KTB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9KTB, oldest first.
- ABBOTT, JAMES R IN1992-03-10 → cancelled 2002-06-20
- Moore, Kathryn J MD2015-08-29 active