Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3BGP callsign genealogy
Currently held by KREISHER, LEONARD 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 N3BGP's current licensee, walking backwards.
- Antkowiak, Joseph MMDgranted 2024-11-05cancelled 2025-01-03
Successor callsigns
Callsigns held now by people who previously held N3BGP.
- KREISHER, LEONARD JPAgranted 2020-03-17
All historical holders
Every license row we've seen with the callsign N3BGP, oldest first.
- KREISHER, LEONARD J PA2016-02-17 → cancelled 2020-03-17
- Antkowiak, Joseph M MD2025-01-03 active