Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4JK callsign genealogy
Currently held by FOSTER, GREGORY B
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 KW4JK's current licensee, walking backwards.
- FOSTER, GREGORY BGAgranted 2015-03-24cancelled 2015-05-11
Successor callsigns
Callsigns held now by people who previously held KW4JK.
No current licensee on record previously held this callsign.