Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8KDO callsign genealogy
Currently held by Rosenberger, Seth L
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 K8KDO's current licensee, walking backwards.
- Rosenberger, Seth LOHgranted 2013-03-13cancelled 2016-03-12
Successor callsigns
Callsigns held now by people who previously held K8KDO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8KDO, oldest first.
- CHAPIN, MILDRED L OH1998-01-06 → cancelled 2010-01-07
- Rosenberger, Seth L OH2016-03-12 active