Area Code +30-21-(02100000...02109999) 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 : 02100000 Subscriber Number To : 02109999 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-(02040000...02049999) next › : +30-21-(02110000...02119999) Dialling Instructions For trunk calls: - 21 02100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 02100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 02100000 ~ 02109999 (Count: 10,000) Example: +30-21-02100000 / 0030-21-02100000 (021-02100000 / 0-21-02100000) +30-21-02100001 / 0030-21-02100001 (021-02100001 / 0-21-02100001) +30-21-02100002 / 0030-21-02100002 (021-02100002 / 0-21-02100002) +30-21-02100003 / 0030-21-02100003 (021-02100003 / 0-21-02100003) +30-21-02100004 / 0030-21-02100004 (021-02100004 / 0-21-02100004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-02109995 / 0030-21-02109995 (021-02109995 / 0-21-02109995) +30-21-02109996 / 0030-21-02109996 (021-02109996 / 0-21-02109996) +30-21-02109997 / 0030-21-02109997 (021-02109997 / 0-21-02109997) +30-21-02109998 / 0030-21-02109998 (021-02109998 / 0-21-02109998) +30-21-02109999 / 0030-21-02109999 (021-02109999 / 0-21-02109999)