Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1OOO callsign genealogy
Currently held by BALDYGA, ROBERT
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 N1OOO's current licensee, walking backwards.
- BALDYGA, ROBERTILgranted 2022-01-18cancelled 2026-03-31
Successor callsigns
Callsigns held now by people who previously held N1OOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1OOO, oldest first.
- HAWKES, DONNA L MA2013-03-14 → cancelled 2025-03-15
- BALDYGA, ROBERT IL2026-03-31 active