Area Code +30-21-(29550000...29559999) 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 : 29550000 Subscriber Number To : 29559999 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 : HELLAS ON LINE 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-(29090000...29099999) next › : +30-21-(30000000...30009999) Dialling Instructions For trunk calls: - 21 29550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 29550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 29550000 ~ 29559999 (Count: 10,000) Example: +30-21-29550000 / 0030-21-29550000 (021-29550000 / 0-21-29550000) +30-21-29550001 / 0030-21-29550001 (021-29550001 / 0-21-29550001) +30-21-29550002 / 0030-21-29550002 (021-29550002 / 0-21-29550002) +30-21-29550003 / 0030-21-29550003 (021-29550003 / 0-21-29550003) +30-21-29550004 / 0030-21-29550004 (021-29550004 / 0-21-29550004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-29559995 / 0030-21-29559995 (021-29559995 / 0-21-29559995) +30-21-29559996 / 0030-21-29559996 (021-29559996 / 0-21-29559996) +30-21-29559997 / 0030-21-29559997 (021-29559997 / 0-21-29559997) +30-21-29559998 / 0030-21-29559998 (021-29559998 / 0-21-29559998) +30-21-29559999 / 0030-21-29559999 (021-29559999 / 0-21-29559999)