Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NO4I callsign genealogy
Currently held by JANOW, CARL
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 NO4I's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NO4I.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NO4I, oldest first.
- JANOW, CARL VA1996-03-14 → cancelled 2008-03-15
- Arroyo, Jose M FL2018-02-13 active