MTS, or Mobile TeleSystems, is a telecommunications company based in Russia. It provides a range of services, including mobile and fixed-line voice services, broadband internet, and digital television. MTS is one of the largest mobile network operators in Eastern Europe and has millions of subscribers across various countries. Founded in 1993, MTS has expanded its operations beyond Russia, offering services in countries like Armenia, Belarus, and Ukraine. The company is known for its innovative solutions and investments in technology, aiming to enhance connectivity and digital services for its customers.