Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9DCS callsign genealogy
Currently held by RZEPKA, RAYMOND J
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 N9DCS's current licensee, walking backwards.
- SHOEMAKER JR, DONALD CNMgranted 2020-02-12cancelled 2022-12-06
Successor callsigns
Callsigns held now by people who previously held N9DCS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9DCS, oldest first.
- RZEPKA, RAYMOND J IL2006-05-16 → cancelled 2018-08-10
- SHOEMAKER JR, DONALD C NM2022-12-06 active