HELLENIC TELECOM. ORG.

Announcement

2010 FIRST QUARTER RESULTS UNDER IFRS TO BE RELEASED ON MAY 12, 2010
Hellenic Telecommunications Organization SA (ASE: HTO, NYSE: OTE), the Greek full-service telecommunications provider, announces that it will release its first quarter 2010 results under IFRS on Wednesday, May 12, 2010.
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, acquiring stakes in the incumbent telecommunications companies of Romania and Serbia, and establishing mobile operations in Albania, Bulgaria and Romania. At present, companies in which OTE Group has an equity interest employ over 32,000 people in five 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 as well as on the New York Stock Exchange under the ticker OTE. In the U.S., OTE's American Depository Receipts (ADR?s) represents - ordinary share.
Additional Information is also available on http://www.ote.gr.
Contacts:
OTE: Dimitris Tzelepis - Head of Investor Relations
Tel: +30 210 611 1574, Email: dtzelepis@ote.gr
Maria Kountouri - Assistant to the Head of Investor Relations
Tel: +30 210 611 5381, Email: mkountouri@ote.gr
Christina Hadjigeorgiou - Financial Analyst, Investor Relations
Tel: +30 210 611 1428, Email: cchatzigeo@ote.gr
Sofia Ziavra - Financial Analyst, Investor Relations
Tel: +30 210 611 8190, Email: sziavra@ote.gr
Dimitris Tsatsanis - Financial Analyst, Investor Relations
Tel: +30 210 611 6071, Email: dtsatsanis@ote.gr
Daria Kozanoglou - Senior Communications & Regulatory Affairs Officer, Investor Relations
Tel: +30 210 611 1121, Email: nkozanoglou@ote.gr
Eftychia Tourna - Communications & Regulatory Affairs Officer, Investor Relations
Tel: +30 210 611 7236, Email: etourna@ote.gr
Eleni Agoglossaki - Communications & Regulatory Affairs Officer, Investor Relations
Tel: +30 210 611 7880, Email: eagoglossak@ote.gr