Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1TRO callsign genealogy
Currently held by HARRIS, THOMAS 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 N1TRO's current licensee, walking backwards.
- HARRIS, THOMAS JNHgranted 1998-12-04cancelled 2007-02-27
Successor callsigns
Callsigns held now by people who previously held N1TRO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1TRO, oldest first.
- HARRIS JR, ALEXANDER W NH1994-12-06 → cancelled 2006-12-07
- HARRIS, THOMAS J NH2016-12-09 active