FINANCIAL CALENDAR 2013

Athens, February 27, 2013 - The Hellenic Telecommunications Organization SA (OTE SA), in accordance with paragraphs 4.1.2(b) and 4.1.4.3.1 of the Athens Stock Exchange Regulation, announces its Financial Calendar, according to which:

1. The 2012 Parent Company and consolidated financial statements will be released on Thursday, February 28, 2013 (uploaded on the company's website: http://www.ote.gr, following the path Company -> Investor Relations), and on the Athens Stock Exchange's website and published in the press on the following day (C.L. 2190/1920 and L. 3556/2007, as in force).

2. The Company will hold a conference call with analysts and investors to discuss its full year 2012 financial results, on Thursday, February 28, 2013.

3. The Annual General Shareholders Meeting will take place on Wednesday, June26, 2013 at OTE headquarters, 99 Kifisias Av., Marousi, Athens.

4. The company's Board of Directors will propose no dividend distribution for the fiscal year 2012 at the Annual General Shareholders Meeting.

OTE Group is Greece's leading telecommunications organization and one of the pre-eminent players in Southeastern Europe, providing top-quality products and services to its customers.

Apart from serving as a full service telecommunications group in the Greek telecoms market, OTE Group has also expanded during the last decade its geographical footprint throughout South East Europe, having acquired a stake in the incumbent telecommunications company of Romania and establishing mobile operations in Albania, Bulgaria and Romania. At present, companies in which OTE Group has an equity interest employ more than 29,000 people in four countries, and our portfolio of solutions ranges from fixed and mobile telephony to Internet applications, satellite, maritime communications and consultancy services.

Listed on the Athens Stock Exchange, the company trades under the ticker HTO. Following OTE's delisting from NYSE, OTE ADSs (American Depositary Shares) trade in the OTC (Over The Counter) market under the ticker HLTOY.

Contacts:

OTE: Dimitris Tzelepis - Head of Investor Relations

Tel: +30 210 611 1574, Email: [email protected] 

Maria Kountouri - Assistant to the Head of Investor Relations

Tel: +30 210 611 5381, Email: [email protected] 

Kostas Maselis - Senior Financial Analyst, Investor Relations

Tel: +30 210 611 7593, Email: [email protected]

Sofia Ziavra - Financial Analyst, Investor Relations

Tel: +30 210 611 8190, Email: [email protected]

Christina Hadjigeorgiou - Financial Analyst, Investor Relations

Tel: +30 210 611 1428, Email: [email protected]

Eftychia Tourna - Communications & Regulatory Affairs Officer, Investor Relations

Tel: +30 210 611 7236, Email:[email protected]

Eleni Agoglossaki - Communications & Regulatory Affairs Officer, Investor Relations

Tel: +30 210 611 7880, Email: [email protected]