Area Code +30-21-(00040000...00049999) 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 : 00040000 Subscriber Number To : 00049999 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-(00030000...00039999) next › : +30-21-(00050000...00059999) Dialling Instructions For trunk calls: - 21 00040000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 00040000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00040000 ~ 00049999 (Count: 10,000) Example: +30-21-00040000 / 0030-21-00040000 (021-00040000 / 0-21-00040000) +30-21-00040001 / 0030-21-00040001 (021-00040001 / 0-21-00040001) +30-21-00040002 / 0030-21-00040002 (021-00040002 / 0-21-00040002) +30-21-00040003 / 0030-21-00040003 (021-00040003 / 0-21-00040003) +30-21-00040004 / 0030-21-00040004 (021-00040004 / 0-21-00040004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-00049995 / 0030-21-00049995 (021-00049995 / 0-21-00049995) +30-21-00049996 / 0030-21-00049996 (021-00049996 / 0-21-00049996) +30-21-00049997 / 0030-21-00049997 (021-00049997 / 0-21-00049997) +30-21-00049998 / 0030-21-00049998 (021-00049998 / 0-21-00049998) +30-21-00049999 / 0030-21-00049999 (021-00049999 / 0-21-00049999)