Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK3XX callsign genealogy
Currently held by MID-ATLANTIC CONTEST CLUB
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 KK3XX's current licensee, walking backwards.
- SCHNUPP, KEVIN AMDgranted 2020-06-01cancelled 2024-03-15
Successor callsigns
Callsigns held now by people who previously held KK3XX.
- N4ZKcancelledMID-ATLANTIC CONTEST CLUBVAgranted 2019-02-02cancelled 2021-04-02
All historical holders
Every license row we've seen with the callsign KK3XX, oldest first.
- MID-ATLANTIC CONTEST CLUB VA2016-04-26 → cancelled 2019-02-02
- SCHNUPP, KEVIN A MD2024-03-15 active