Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KT4DSM callsign genealogy
Currently held by McGouyrk, Daniel S
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 KT4DSM's current licensee, walking backwards.
- McGouyrk, Daniel SALgranted 2019-10-07cancelled 2021-04-30
Successor callsigns
Callsigns held now by people who previously held KT4DSM.
No current licensee on record previously held this callsign.