Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4CPT callsign genealogy
Currently held by DINGFELDER JR, ROBERT
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 N4CPT's current licensee, walking backwards.
- DINGFELDER JR, ROBERTFLgranted 2010-01-15cancelled 2010-04-09
Successor callsigns
Callsigns held now by people who previously held N4CPT.
- Marlowe, Jeremy NVAgranted 2002-03-06cancelled 2006-11-21
All historical holders
Every license row we've seen with the callsign N4CPT, oldest first.
- Marlowe, Jeremy N VA2002-03-06 → cancelled 2004-06-08
- DINGFELDER JR, ROBERT FL2020-04-06 active