Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JJR callsign genealogy
Currently held by RUSSO, JAMES J
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 K4JJR's current licensee, walking backwards.
- RUSSO, JAMES JVAgranted 2002-01-29cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held K4JJR.
No current licensee on record previously held this callsign.