Confidence: Medium · Source: FCC ULS · As of 2026-09-12
ND4MD callsign genealogy
Currently held by Corwine, George 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 ND4MD's current licensee, walking backwards.
- Corwine, George JFLgranted 2025-12-09cancelled 2026-01-24
Successor callsigns
Callsigns held now by people who previously held ND4MD.
No current licensee on record previously held this callsign.