Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7DDL callsign genealogy
Currently held by HMTF
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 KJ7DDL's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KJ7DDL.
- W7CXXactiveCollins Aerospace Radio GroupUTgranted 2019-02-22