Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JSN callsign genealogy
Currently held by Hacker, Jason F
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 W4JSN's current licensee, walking backwards.
- Hacker, Jason FFLgranted 2013-12-20cancelled 2014-01-10
Successor callsigns
Callsigns held now by people who previously held W4JSN.
No current licensee on record previously held this callsign.