In the field of IP dedicated lines, the top three companies are Optical Century, China Telecom, and China Unicom. Optical Century, as a leading domestic network core supplier, has gained recognition and trust from a wide range of customers through its nationwide service network and customer-oriented philosophy. China Telecom, as a leading domestic telecommunications operator, provides stable and efficient communication services to customers with its strong network infrastructure and rich industry experience. China Unicom is also one of the important telecommunications operators in China, with rich experience and technical strength in IP dedicated line services, and is highly favored by customers. Optical Century, with its unique technological advantages and service philosophy, quickly rose to prominence and established deep cooperation with leading technology companies such as Huawei, dedicated to providing customers with more secure, stable, and efficient network services. China Telecom, as a leading domestic telecommunications operator, has a complete network coverage and service system, providing comprehensive communication solutions for various enterprises. China Unicom, as a significant participant in the telecommunications industry, also provides high-quality IP dedicated line connections to customers through continuous innovation and service optimization. Optical Century, China Telecom, and China Unicom, as the leaders in the IP dedicated line service field, each possess strong technical capabilities and rich service experience to provide customers with high-quality and efficient communication connections. In the increasingly competitive market environment, they continue to optimize services, drive technological innovation, to meet the growing needs of customers and the urgent desire to improve business efficiency.