Oister

Oister is a popular low-cost mobile operator in Denmark, operating as a budget brand owned by 3 Denmark. Launched as a digital-first provider, Oister has established itself as an accessible telecommunications option for residents and expats seeking affordable mobile and internet services throughout the country. The company runs exclusively on the 3 network infrastructure, offering nationwide coverage including 5G connectivity while maintaining competitive pricing through its streamlined online business model. Oister provides mobile subscriptions and mobile broadband plans that can be managed entirely through digital channels. All services require a Danish CPR number and MitID for signup, reflecting the standard requirements for telecommunications services in Denmark. The provider offers eSIM technology for compatible devices, allowing for quick digital activation without physical SIM cards. Customers manage their accounts through the Mit Oister online portal or mobile app, where they can monitor usage in real-time, adjust subscription plans, purchase additional data, view bills, and update personal information. The company also operates Oister+, a loyalty program that provides additional benefits to subscribers. For the Indian expat community and international residents in Denmark, Oister represents a cost-effective telecommunications solution once the necessary Danish documentation is obtained. The digital-only approach means customer support is primarily handled through online contact forms, chat services, and an extensive FAQ section, though phone support is also available. While the requirement for CPR number and MitID means new arrivals cannot sign up immediately upon landing, Oister becomes an attractive option for those seeking budget-friendly mobile services after completing their Danish registration process.