T-Mobile US Inc  reported a 10.6 percent rise in quarterly revenue as heavy discounts helped the No.3 wireless carrier attract more customers.
The company reported net income of $479 million, or 56 cents per share, for the first quarter ended March 31, compared with a loss of $63 million, or 9 cents per share, a year earlier.
Revenue jumped to $8.6 billion from $7.78 billion.
