More than 400 research & education institutions in the Nordics, with over 1.2 million users, are connected via the Nordic NREN networks, enabling scientists, educators, and students to work and share knowledge globally. NORDUnet is an active participant in the European NREN collaboration GÉANT and is a founding father of intercontinental NREN collaborations such as the Advanced North Atlantic (ANA) and AsiaPacific Europe Ring (AER) systems that are part of the Global Research and Education Network (GREN).