TT-Netværket P/S, operating in Denmark (MCC 238), is a significant mobile network provider formed as a joint venture between Telia and Telenor. Its Mobile Network Code (MNC) is 66. This collaboration allows both Telia and Telenor customers to benefit from a shared network infrastructure, offering extended coverage and improved network efficiency across the country. By pooling resources, TT-Netværket aims to provide a competitive and robust mobile experience for its users throughout Denmark. Unlike some European countries with numerous independent virtual network operators (MVNOs) piggybacking on established networks, the strategic partnership embodied by TT-Netværket directly impacts the core infrastructure available to a large portion of Danish mobile subscribers. This type of shared network deployment is relatively unique in Europe, demonstrating a commitment to optimizing resources and providing a powerful mobile infrastructure. This collaboration allows Telia and Telenor to focus on customer services and innovation while sharing the cost of network maintenance and upgrades.