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Phone number 21 0288 4323 with countrycode 30
originate from Athens/Piraeus/Salamina in Greece and it is a fixed line telephone number.
Greece's isocodes are GR and GRC.
When calling from abroad use either two zeros (00) or a plus sign (+) and then the country code before typing the number. Example: +30 2102884323 or 0030 2102884323.
This number is a valid existing number.