D-Network

The D-Network (Ｄネットワーク, Dyueru Nettowāku) or D-Net (Ｄネット, Dyueru Netto) is a system used in the Yu-Gi-Oh! D Team ZEXAL manga. It is a network used by Dueling Teams through their D-Pads, where they can send Duel invitations to each other, among other things. When a person officially becomes member of a team by receiving their team's badge, they can access the D-Network. Also, in the Duel Team Tournament, one could check the tournament's rules' details anytime by consulting the D-Network.