Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0ACX callsign genealogy
Currently held by SCHROEDER, HENRY H
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 N0ACX's current licensee, walking backwards.
- Penn, Colby BIAgranted 2012-04-13cancelled 2016-03-05
Successor callsigns
Callsigns held now by people who previously held N0ACX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ACX, oldest first.
- SCHROEDER, HENRY H SC1995-10-18 → cancelled 2007-10-19
- Penn, Colby B IA2026-01-30 active