KT (KT) reported Q4 operating income Tuesday of 227.3 billion South Korean won ($155.7 million), compared with a loss of 655.1 billion won a year earlier.
Operating revenue for the quarter ended Dec. 31 was 6.845 trillion won, up from 6.576 trillion won a year earlier.
Analysts polled by FactSet expected 6.854 trillion won.
The company's shares were up 2% in recent premarket activity.