Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4CWJ callsign genealogy
Currently held by AMBROSE, FRANK 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 N4CWJ's current licensee, walking backwards.
- Johnson, Corey WVAgranted 2024-03-13cancelled 2024-11-13
Successor callsigns
Callsigns held now by people who previously held N4CWJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4CWJ, oldest first.
- Johnson, Corey W VA2024-11-13 active
- AMBROSE, FRANK J— → cancelled 1997-08-13