Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4JJF callsign genealogy
Currently held by VALENTIN NIEVES, LILLIAN A
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 KN4JJF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KN4JJF.
- VALENTIN NIEVES, LILLIAN APRgranted 2018-02-05cancelled 2018-03-30