PRAGUE--Telefonica Czech Republic AS (BAATELEC.PR), a unit of Spain's Telefonica SA (TEF), Wednesday reported a 17.8% drop in second-quarter net profit, coming below market expectations, on lower revenues on fierce competition for cheap monthly calling plans among all three local operators.

MAIN FACTS:

--Net profit in the second quarter through end-June in at 1.34 billion koruna ($68.3 million), down from CZK1.63 billion a year earlier. The result was worse than market expectations for CZK1.39 billion in consolidated profit.

--The company reported a 5.8% drop in revenue, to CZK12.01 billion from CZK12.75 billion a year earlier. The first-quarter revenue came below market expectations for CZK12.04 billion.

--Operating income before depreciation and amortization, or Oibda, in the three months through to the end of June came in at CZK4.79 billion, up 4.5% from CZK4.54 billion. Analysts had expected Oibda at CZK4.61 billion.

--Telefonica Czech, the largest telecommunications operator in the country, added 113,000 new cellular customers to the total of 5.1 million at the end of June.

--Telefonica confirms its 2013 guidance for a slight decrease of its Oibda margin from the level of 41.4% recorded in 2012, the company said.

Write to Leos Rousek at leos.rousek@dowjones.com

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