Announcement of Regulated Information NOTIFICATION OF BOND BUYBACKS

Αthens, April 7, 2015 - The Hellenic Telecommunications Organization SA (OTE SA), announces that further to the Company's announcement dated 9/7/2014, its subsidiary OTE plc, has repurchased a principal amount of EUR 70,550,000 in aggregate from the

4.625 per cent Notes due 20 May 2016 (ISIN: XS0275776283). The repurchased Notes have been surrendered for cancellation. Following the repurchase, the outstanding principal amount of the Notes is EUR 629,450,000.

This announcement is published in accordance with Law 3556/2007 [article 3, par. 1 (f), (bb), and article 21], Law 3340/2005 and the relevant Decisions of the Hellenic Capital Market Commission.

FOR FURTHER INFORMATION:

OTE GROUP MERGERS, ACQUISITIONS AND INVESTOR RELATIONS DIVISION

Tel.: +30 210-6115323

E-mail: esarsentis@ote.gr

Fax: +30 210-6111030

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