Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS4NJ callsign genealogy
Currently held by BLACKBURN, HOBSON D
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 KS4NJ's current licensee, walking backwards.
- N4XBSno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KS4NJ.
- BLACKBURN, HOBSON DALgranted 2013-01-23cancelled 2015-04-07