Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4EDR callsign genealogy
Currently held by Rentz, Erik 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 K4EDR's current licensee, walking backwards.
- Rentz, Erik DGAgranted 2012-12-13cancelled 2020-09-18
Successor callsigns
Callsigns held now by people who previously held K4EDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4EDR, oldest first.
- Martin, Alfred L TN2007-05-19 → cancelled 2019-05-21
- Rentz, Erik D GA2020-09-18 active