Shares of AT&T (NYSE: T) climbed more than 6% on Wednesday, following the release of the telecom titan's fourth-quarter earnings report. 

AT&T added 656,000 postpaid phone subscribers, who pay monthly bills and are generally wireless carriers' most profitable customers. For the full year, AT&T gained a total of nearly 2.9 million of these sought-after subscribers.

Additionally, AT&T Fiber added 280,000 customers during the quarter and a total of 1.2 million for the year. The high-speed internet service has now gained at least 1 million subscribers for five consecutive years.

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Source Fool.com