Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1CWK callsign genealogy
Currently held by Ningrat, Wahyu
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 N1CWK's current licensee, walking backwards.
- Ningrat, WahyuNJgranted 2014-01-31cancelled 2014-03-18
Successor callsigns
Callsigns held now by people who previously held N1CWK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1CWK, oldest first.
- VERFAILLIE, JOSEPH FL1995-03-15 → cancelled 2000-09-22
- Ningrat, Wahyu NJ2014-03-18 → cancelled 2026-03-19