Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DYR callsign genealogy
Currently held by SIMMONS, RICHARD M
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 K4DYR's current licensee, walking backwards.
- KI4RFVcancelledDYER COUNTY AMATEUR RADIO ASSOCIATIONTNgranted 2006-09-14cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held K4DYR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DYR, oldest first.
- SIMMONS, RICHARD M FL1988-03-29 → cancelled 2000-03-30
- DYER COUNTY AMATEUR RADIO ASSOCIATION TN2016-11-21 active