HELLENIC TELECOM. ORGANIZATION S.A. : Q4 AND FULL YEAR 2012 RESULTS ANNOUNCEMENT DATE

HELLENIC TELECOMMUNICATIONS ORGANIZATION S.A.

2012 FOURTH QUARTER RESULTS UNDER IFRS TO BE RELEASED ON FEBRUARY 28, 2013

ATHENS, Greece - January 28, 2013 - Hellenic Telecommunications Organization SA (ASE: HTO, OTC MARKET:HLTOY), the Greek full-service telecommunications provider, announces that it will release its fourth quarter and full year 2012 results under IFRS on Thursday, February 28, 2013.

OTE's management will host a conference call at 17:00 (GREECE) / 16:00 (CONTINENT) /

15:00 (UK) /10:00 (EASTERN US) following the release, to review the results.

Details regarding conference call dial-in and replay numbers as well as the live audio webcast of the conference call, following the results release, will follow.

About OTE

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.
Additional Information is also available on: http://www.ote.gr/portal/page/portal/InvestorRelation/InvestorRelation

Contacts:

OTE: Dimitris Tzelepis - Head of Investor Relations
Tel: [phone], Email: [e-mail]
Maria Kountouri - Assistant to the Head of Investor Relations
Tel: [phone], Email: [e-mail]
Kostas Maselis - Senior Financial Analyst, Investor Relations
Tel: [phone], Email: [e-mail] Ziavra - Financial Analyst, Investor Relations Tel: [phone], Email: [e-mail]
Christina Hadjigeorgiou - Financial Analyst, Investor Relations
Tel: [phone], Email: [e-mail]
Daria Kozanoglou - Senior Communications & Regulatory Affairs Officer, Investor Relations
Tel: [phone], Email: [e-mail]
Eftychia Tourna - Communications & Regulatory Affairs Officer, Investor Relations
Tel: [phone], Email: [e-mail]
Eleni Agoglossaki - Communications & Regulatory Affairs Officer, Investor Relations
Tel: [phone], Email: [e-mail]
Manousos Apostolakis - Communications & Regulatory Affairs Officer, Investor Relations
Tel: [phone], Email: [e-mail]

OTE SA - 99 Kifisias Ave, 15124 Maroussi, Athens Greece Page 1 of

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