Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ROS callsign genealogy
Currently held by Ross, Randall 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 K4ROS's current licensee, walking backwards.
- WOOD, ROSEMARIE SSCgranted 2015-02-18cancelled 2015-03-14
Successor callsigns
Callsigns held now by people who previously held K4ROS.
- Ross, Randall LKYgranted 2019-10-25cancelled 2020-08-01
All historical holders
Every license row we've seen with the callsign K4ROS, oldest first.
- Ross, Randall L KY2010-01-22 → cancelled 2012-03-21
- WOOD, ROSEMARIE S SC2025-02-20 active