Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4BET callsign genealogy
Currently held by SULLIVAN, MICHAEL 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 N4BET's current licensee, walking backwards.
- SULLIVAN, MICHAEL JTNgranted 2022-03-14cancelled 2022-04-05
Successor callsigns
Callsigns held now by people who previously held N4BET.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4BET, oldest first.
- GELIK, RONALD W AL2010-02-18 → cancelled 2022-03-12
- SULLIVAN, MICHAEL J TN2022-04-05 active