OTE RECEIVES BEST FIRM, BEST CFO, BEST IRO AWARDS FOR GREECE

AT THE 2012 EXTEL EUROPE SURVEY

ATHENS, Greece –June 20, 2012 – Hellenic Telecommunications Organization SA (ASE: HTO, OTC MARKET: HLTOY), announces that its performance was rewarded with high rankings in the 2012 Extel Europe Investor Relations Survey.

OTE was voted by international analysts and investors as the best Firm for Investor Relations in Greece, OTE's Group CFO, Mr. Kevin Copp, was voted the best CFO for Investor Relations, and OTE's IRO, Mr Dimitris Tzelepis was voted the best Investor Relations Professional in Greece, for the year 2012.

The annual Investor Relations Survey from Extel is the largest professional study of its type in the world and represents the views of over 14,000 buyside, brokerage and corporate participants.