COSMOTEATOFFICE, created in 2008 (Greece), from 53 sister brands and 3453 competing brands. COSMOTEATOFFICE is a brand of HELLENIC TELECOMMUNICATIONS ORGANIZATION, listed on the stock exchange of Etats-Unis. The International Securities Identification Number (ISIN) of HELLENIC TELECOMMUNICATIONS ORGANIZATION is GRS260333000. COSMOTEATOFFICE belongs to the Telecommunication Services business sector.