Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SVM 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 K0SVM's current licensee, walking backwards.
- Twohig, Patrick HCAgranted 2018-07-30cancelled 2018-08-24
Successor callsigns
Callsigns held now by people who previously held K0SVM.
- Twohig, Patrick HCAgranted 2023-06-23