Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NY2BT callsign genealogy
Currently held by TROJANOWSKI, WILLIAM D
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 NY2BT's current licensee, walking backwards.
- TROJANOWSKI Mr, WILLIAM DNYgranted 2009-08-19cancelled 2011-03-29
Successor callsigns
Callsigns held now by people who previously held NY2BT.
- TROJANOWSKI, WILLIAM DNYgranted 2011-10-15cancelled 2023-10-17