Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RDL callsign genealogy
Currently held by LEWIS, RONALD D
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 K4RDL's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4RDL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RDL, oldest first.
- LITTLETON JR, EDGAR L SC2004-08-25 → cancelled 2016-11-17
- LEWIS, RONALD D SC2016-12-06 active