Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SUX callsign genealogy
Currently held by Frank, Matthew 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 K0SUX's current licensee, walking backwards.
- Frank, Matthew JIAgranted 2010-11-09cancelled 2012-11-20
Successor callsigns
Callsigns held now by people who previously held K0SUX.
No current licensee on record previously held this callsign.