Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4HDF callsign genealogy
Currently held by FOSTER, ADRIENNE N
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 KJ4HDF's current licensee, walking backwards.
- FOSTER, ADRIENNE NNCgranted 2008-08-11cancelled 2008-10-14
Successor callsigns
Callsigns held now by people who previously held KJ4HDF.
No current licensee on record previously held this callsign.