Teknologian tutkimuskeskus VTT Oy, operating in Finland (MCC 244), is a significant research and technology organisation in Europe. It utilises mobile network code (MNC) 28 for its internal and potentially experimental mobile network activities. Unlike commercial mobile operators such as Elisa, DNA, or TeliaSonera, VTT focuses on technological advancement and research rather than providing widespread public mobile services, and is a fully state owned company. Their application of a dedicated mobile network often serves as a testbed for innovative communication technologies, allowing them to explore and validate new concepts before they are implemented by larger commercial networks in Finland and across Europe. VTT's use of MNC 28 is crucial for their research endeavours, enabling them to test new protocols, network architectures, and applications in a controlled environment. This contributes to the overall development of the telecommunications sector in Finland, which is known for its advanced technology infrastructure and high mobile penetration rate. While typical Finnish mobile users might primarily interact with networks operated by major players, VTT's work behind the scenes plays a vital role in shaping the future of mobile communications and advancing the state-of-the-art. Through exploring cutting edge technological advances.