Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT0Y callsign genealogy
Currently held by DULIN, GATUS 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 KT0Y's current licensee, walking backwards.
- Booth, Thomas JMNgranted 2001-02-26cancelled 2006-08-08
Successor callsigns
Callsigns held now by people who previously held KT0Y.
- DULIN, GATUS DWAgranted 2004-06-02cancelled 2016-06-03
All historical holders
Every license row we've seen with the callsign KT0Y, oldest first.
- DULIN, GATUS D WA2000-06-13 → cancelled 2004-06-02
- BOOTH, THOMAS J MN2026-06-17 active