Telephone and Data Systems Inc. The Group's principal activity is to provide telecommunication services with wireless telephone and wireline telephone operations. The Group conducts all its wireless operation through United States Cellular Corporation and wireline telephone operations through its wholly owned subsidiary, TDS Telecommunications ... More

Telephone and Data Systems Inc. The Group's principal activity is to provide telecommunication services with wireless telephone and wireline telephone operations. The Group conducts all its wireless operation through United States Cellular Corporation and wireline telephone operations through its wholly owned subsidiary, TDS Telecommunications Corporation. The Group classifies its segment into U.S. Cellular, Incumbent Local Exchange Carrier (ILEC) and Competitive Local Exchange Carrier (CLEC). At 31-Dec-2008, the Group served approximately 7.4 million customers in 36 States. In 2008 it acquired Mosinee Telephone Company LLC, North Carolina RSA 1 Partnership and West Point Telephone Company.