Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4NJB callsign genealogy
Currently held by Guest, Roderick B
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 K4NJB's current licensee, walking backwards.
- Guest, Roderick BALgranted 2013-12-18cancelled 2014-01-31
Successor callsigns
Callsigns held now by people who previously held K4NJB.
No current licensee on record previously held this callsign.