Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JSS callsign genealogy
Currently held by Smith, Jeffrey S
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 K4JSS's current licensee, walking backwards.
- Smith, Jeffrey STNgranted 2019-03-22cancelled 2019-05-04
Successor callsigns
Callsigns held now by people who previously held K4JSS.
No current licensee on record previously held this callsign.