Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5HEM callsign genealogy
Currently held by Simpson, David C
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 KC5HEM's current licensee, walking backwards.
- Simpson, David CTXgranted 2014-06-11cancelled 2014-09-23
Successor callsigns
Callsigns held now by people who previously held KC5HEM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC5HEM, oldest first.
- SIMPSON, DAVID C TX1994-06-28 → cancelled 2006-06-29
- Simpson, David C TX2014-09-23 active