Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9HD callsign genealogy
Currently held by SIEGEL, HOWARD
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 N9HD's current licensee, walking backwards.
- SIEGEL, HOWARDNYgranted 1997-01-06cancelled 2001-04-03
Successor callsigns
Callsigns held now by people who previously held N9HD.
- ANTLFINGER, THOMAS JWIgranted 2009-04-24cancelled 2010-03-26
All historical holders
Every license row we've seen with the callsign N9HD, oldest first.
- SIEGEL, HOWARD NV2021-01-08 active
- ANTLFINGER, THOMAS J— → cancelled 1999-03-11