Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7KDC callsign genealogy
Currently held by CARGO, SUSAN JO
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 N7KDC's current licensee, walking backwards.
- Cook, Keith DORgranted 2012-08-14cancelled 2016-04-01
Successor callsigns
Callsigns held now by people who previously held N7KDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7KDC, oldest first.
- CARGO, SUSAN JO ID1999-07-19 → cancelled 2011-07-20
- Cook, Keith D OR2026-02-18 active