T-Mobile ( TMUS ) shares rose after the telecom-services giant, touting 2 million subscriber adds, posted better-than-expected earnings and guidance. Shares of the Bellevue, Wash., company at last check were up 6.3% to $124.62. The stock on Friday has traded up as much as 8.3%, above $127. That's a 52-week high, double the 52-week low of $63.50, set in mid-March. T-Mobile posted earnings of $1.25 billion, or $1 a share, compared with $870 million, or $1 a share, in the year-earlier period. Revenue increased 75% to $19.27 billion from $11.06 billion. A survey of analysts polled by FactSet expected earnings of 46 cents a share on sales of $18.3 billion. The company added 2.03 million subscribers in the third quarter. Of them, 1.98 million were postpaid customers, which generally are more valuable to the telecom-service providers than prepaid customers because they're less likely to switch to rival providers. "Customers are choosing T-Mobile in record numbers," Chief Executive Mike Sievert said in a statement.