Confidence: Medium · Source: FCC ULS · As of 2026-09-12
ND1S callsign genealogy
Currently held by SCHUDT, JOSEPH A
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 ND1S's current licensee, walking backwards.
- SCHUDT, JOSEPH AILgranted 2008-07-09cancelled 2008-08-26
Successor callsigns
Callsigns held now by people who previously held ND1S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign ND1S, oldest first.
- KELLIHER, JAMES L MA1995-11-28 → cancelled 2007-11-29
- SCHUDT, JOSEPH A IL2018-06-11 active