Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DUP callsign genealogy
Currently held by Dupuis, David A
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 K1DUP's current licensee, walking backwards.
- Dupuis, David AMAgranted 2025-01-31cancelled 2025-05-06
Successor callsigns
Callsigns held now by people who previously held K1DUP.
No current licensee on record previously held this callsign.