Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4LDR callsign genealogy
Currently held by SHAW, PETER J F
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 K4LDR's current licensee, walking backwards.
- Reynolds, LeoNCgranted 2019-07-23cancelled 2024-09-21
Successor callsigns
Callsigns held now by people who previously held K4LDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4LDR, oldest first.
- SHAW, PETER J F FL2009-10-30 → cancelled 2021-11-02
- Reynolds, Leo NC2024-09-21 active