Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3TRS callsign genealogy
Currently held by Laskow, Mark J
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 K3TRS's current licensee, walking backwards.
- Laskow, Mark JPAgranted 2023-05-04cancelled 2023-05-23
Successor callsigns
Callsigns held now by people who previously held K3TRS.
No current licensee on record previously held this callsign.