UPDATE 1-Czech Telefonica beats Q2 fcast, keeps outlook

(Adds detail, analyst, share price)

PRAGUE, July 24 (Reuters) - Telecommunications operator Telefonica O2 Czech Republic's (SPTTsp.PR) net profit rose 30.4 percent in the second quarter, lifted by real estate sales and growing mobile revenue, it said on Thursday.

Net profit rose to 3.4 billion crowns ($225.9 million) in the quarter, beating a forecast of 3.02 billion in a Reuters poll of 11 analysts.

The bottom line was boosted by a 400 million crown gain from the sale of administrative and technological buildings for more than 4 billion crowns in May.

"Mobile business continued to be the key driver of the group's growth," said chief executive Salvador Anglada in a statement. "In addition, a sale of a part of our real estate portfolio positively contributed (to) our results for the first half."

Revenue grew 0.6 percent to 15.8 billion crowns in the quarter versus a forecast of 16.02 billion.

The mobile business revenue showed a 4.1 percent rise to partly offset a 5 percent decline in the fixed-line segment.

Operating income before interest, tax, depreciation and amortisation (OIBDA) rose 6.5 percent to 7.6 billion crowns, versus a forecast of 7.4 billion.

"The results were a little better than expected, mainly from the one-off influence of the real estate sale, therefore we expect a lukewarm reaction from the market," said analyst Milan Vanicek with Atlantik FT brokerage.