Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7JCJ callsign genealogy
Currently held by Tawney, John 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 KD7JCJ's current licensee, walking backwards.
- JOHNSEN, JAMES CAZgranted 2009-01-21cancelled 2009-02-10
Successor callsigns
Callsigns held now by people who previously held KD7JCJ.
- Tawney, John AORgranted 2020-01-02
All historical holders
Every license row we've seen with the callsign KD7JCJ, oldest first.
- Tawney, John A OR2000-02-29 → cancelled 2001-07-26
- JOHNSEN, JAMES C AZ2018-11-16 active