Area Code +30-21-(02500000...02509999) located in Athens, Attiki (A1), more detail is as below. Place International Dialing Code : 30 International Prefix : 00 National Prefix : 0 National Destination Code : 21 Subscriber Number From : 02500000 Subscriber Number To : 02509999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : OTE S.A Click here to buy Greece Area Code Database Other Information Language Code : el (Greek) Country Number : 300 (Greece) Country Code : GR (Greece) Region Code : A1 Region Name : Attiki City : Athens Timezone : Europe/Athens Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 37.9800 Longitude : 23.7200 ‹ previous : +30-21-(02480000...02489999) next › : +30-21-(02510000...02519999) Dialling Instructions For trunk calls: - 21 02500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 02500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 02500000 ~ 02509999 (Count: 10,000) Example: +30-21-02500000 / 0030-21-02500000 (021-02500000 / 0-21-02500000) +30-21-02500001 / 0030-21-02500001 (021-02500001 / 0-21-02500001) +30-21-02500002 / 0030-21-02500002 (021-02500002 / 0-21-02500002) +30-21-02500003 / 0030-21-02500003 (021-02500003 / 0-21-02500003) +30-21-02500004 / 0030-21-02500004 (021-02500004 / 0-21-02500004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-02509995 / 0030-21-02509995 (021-02509995 / 0-21-02509995) +30-21-02509996 / 0030-21-02509996 (021-02509996 / 0-21-02509996) +30-21-02509997 / 0030-21-02509997 (021-02509997 / 0-21-02509997) +30-21-02509998 / 0030-21-02509998 (021-02509998 / 0-21-02509998) +30-21-02509999 / 0030-21-02509999 (021-02509999 / 0-21-02509999)