Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC8SDR callsign genealogy
Currently held by Richardson, Steven 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 KC8SDR's current licensee, walking backwards.
- Richardson, Steven DOHgranted 2014-09-26cancelled 2015-12-29
Successor callsigns
Callsigns held now by people who previously held KC8SDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC8SDR, oldest first.
- Neff, Mitchell L OH2001-09-06 → cancelled 2013-09-07
- Richardson, Steven D OH2015-12-29 active