Area Code +30-21-(77330000...77339999) 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 : 77330000 Subscriber Number To : 77339999 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 : VOICENET 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-(77320000...77329999) next › : +30-21-(77340000...77349999) Dialling Instructions For trunk calls: - 21 77330000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 77330000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 77330000 ~ 77339999 (Count: 10,000) Example: +30-21-77330000 / 0030-21-77330000 (021-77330000 / 0-21-77330000) +30-21-77330001 / 0030-21-77330001 (021-77330001 / 0-21-77330001) +30-21-77330002 / 0030-21-77330002 (021-77330002 / 0-21-77330002) +30-21-77330003 / 0030-21-77330003 (021-77330003 / 0-21-77330003) +30-21-77330004 / 0030-21-77330004 (021-77330004 / 0-21-77330004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-77339995 / 0030-21-77339995 (021-77339995 / 0-21-77339995) +30-21-77339996 / 0030-21-77339996 (021-77339996 / 0-21-77339996) +30-21-77339997 / 0030-21-77339997 (021-77339997 / 0-21-77339997) +30-21-77339998 / 0030-21-77339998 (021-77339998 / 0-21-77339998) +30-21-77339999 / 0030-21-77339999 (021-77339999 / 0-21-77339999)