Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6SEI callsign genealogy
Currently held by HILL, WILLIAM 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 N6SEI's current licensee, walking backwards.
- KM6BSDcancelledWestchester WarblersCAgranted 2016-04-05cancelled 2016-05-21
Successor callsigns
Callsigns held now by people who previously held N6SEI.
- W6ESEactiveWestchester WarblersCAgranted 2016-08-06
All historical holders
Every license row we've seen with the callsign N6SEI, oldest first.
- HILL, WILLIAM J CA1988-05-10 → cancelled 2000-05-11
- Westchester Warblers CA2016-05-21 → cancelled 2016-08-06