Confidence: Medium · Source: FCC ULS · As of 2026-09-12
ND7K callsign genealogy
Currently held by RAMONA CONTEST CLUB
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 ND7K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held ND7K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign ND7K, oldest first.
- Grey, Charles F FL2007-12-11 → cancelled 2020-01-09
- RAMONA CONTEST CLUB AZ2020-01-28 active