Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RLL callsign genealogy
Currently held by LONDRESS, ROBERT L
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 K4RLL's current licensee, walking backwards.
- LONDRESS, ROBERT LALgranted 2003-07-23cancelled 2006-10-03
Successor callsigns
Callsigns held now by people who previously held K4RLL.
No current licensee on record previously held this callsign.