Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4CDQ callsign genealogy
Currently held by DITMER, CHARLES G
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 N4CDQ's current licensee, walking backwards.
- DITMER, CHARLES GSCgranted 2009-04-21cancelled 2009-10-09
Successor callsigns
Callsigns held now by people who previously held N4CDQ.
- DITMER, CHARLES GSCgranted 2023-03-13