Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6SVM callsign genealogy
Currently held by Twohig, Patrick H
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 K6SVM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6SVM.
No current licensee on record previously held this callsign.