SKT named top carrier for customer satisfaction for 23rd straight year Posted : 2021-01-06 16:24 By Nam Hyun-woo SK Telecom has consolidated its status as the top mobile communication firm, leading the pack in an annual index gauging customer satisfaction, for the 23rd straight year. According to the Korea Productivity Center (KPC), SK Telecom scored 79 in the 2020 National Customer Satisfaction Index (NCSI), up 2 points from 77 the carrier logged last year. SK Telecom has been named the top player among mobile communications firms on the index since 1998, when the KPC began compiling the NCSI. The company attributed the feat to its efforts to apply artificial intelligence and other advanced information technologies to its telecommunications business, which helped the firm provide contactless services to customers and see growth in its NCSI amid the COVID-19 pandemic.