Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4KEL callsign genealogy
Currently held by MOSKOWITZ, SEYMOUR A
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 N4KEL's current licensee, walking backwards.
- GRENGA JR, JOHN KNCgranted 2013-04-23cancelled 2014-05-23
Successor callsigns
Callsigns held now by people who previously held N4KEL.
- MOSKOWITZ, SEYMOUR AALgranted 2000-05-09cancelled 2006-08-04
All historical holders
Every license row we've seen with the callsign N4KEL, oldest first.
- MOSKOWITZ, SEYMOUR A AL1996-08-14 → cancelled 2000-05-09
- GRENGA JR, JOHN K NC2026-03-13 active