Area Code +30-21-(03630000...03639999) 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 : 03630000 Subscriber Number To : 03639999 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-(03620000...03629999) next › : +30-21-(03640000...03649999) Dialling Instructions For trunk calls: - 21 03630000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 03630000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 03630000 ~ 03639999 (Count: 10,000) Example: +30-21-03630000 / 0030-21-03630000 (021-03630000 / 0-21-03630000) +30-21-03630001 / 0030-21-03630001 (021-03630001 / 0-21-03630001) +30-21-03630002 / 0030-21-03630002 (021-03630002 / 0-21-03630002) +30-21-03630003 / 0030-21-03630003 (021-03630003 / 0-21-03630003) +30-21-03630004 / 0030-21-03630004 (021-03630004 / 0-21-03630004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-03639995 / 0030-21-03639995 (021-03639995 / 0-21-03639995) +30-21-03639996 / 0030-21-03639996 (021-03639996 / 0-21-03639996) +30-21-03639997 / 0030-21-03639997 (021-03639997 / 0-21-03639997) +30-21-03639998 / 0030-21-03639998 (021-03639998 / 0-21-03639998) +30-21-03639999 / 0030-21-03639999 (021-03639999 / 0-21-03639999)