HELLENIC TELECOM. ORG.

Announcement

Athens, August 24, 2006 - Hellenic Telecommunications Organization SA (ASE: HTO, NYSE: OTE) the Greek full-service telecommunications provider, the Greek full-service telecommunications provider, will release its 2006 second quarter results under IFRS on Wednesday, August 30, 2006.
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, can be accessed at www.ote.gr, www.ote.gr/english/investorrelations or www.ote.gr/greek/investorrelations