Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5RDL callsign genealogy
Currently held by Ladner Jr, Robert 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 N5RDL's current licensee, walking backwards.
- Ladner Jr, Robert DTXgranted 2025-05-07cancelled 2025-05-28
Successor callsigns
Callsigns held now by people who previously held N5RDL.
- Speak, Gordon AARgranted 2002-12-27cancelled 2014-12-30
All historical holders
Every license row we've seen with the callsign N5RDL, oldest first.
- Speak, Gordon A AR1993-07-27 → cancelled 2002-12-27
- Ladner Jr, Robert D TX2025-05-28 active