Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB2LOY callsign genealogy
Currently held by SOUSA, MARIO 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 KB2LOY's current licensee, walking backwards.
- Sousa, Mario JNJgranted 2024-06-15cancelled 2024-07-16
Successor callsigns
Callsigns held now by people who previously held KB2LOY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB2LOY, oldest first.
- SOUSA, MARIO J NJ2000-12-28 → cancelled 2013-03-28
- Sousa, Mario J NJ2024-07-16 active