Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0LOX callsign genealogy
Currently held by Otto, 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 K0LOX's current licensee, walking backwards.
- Otto, Matthew JMNgranted 2022-06-18cancelled 2022-07-09
Successor callsigns
Callsigns held now by people who previously held K0LOX.
No current licensee on record previously held this callsign.